diff --git a/jm2l/forms.py b/jm2l/forms.py
index 1dc3444..34ffb36 100644
--- a/jm2l/forms.py
+++ b/jm2l/forms.py
@@ -112,7 +112,7 @@ class TiersMember(MyBaseForm):
         csrf = False
 
     year_uid = SelectField(u'Année', coerce=int,
-                           choices=zip(range(2006, CurrentYear + 1), range(2006, CurrentYear + 1)))
+                           choices=list(zip(range(2006, CurrentYear + 1), range(2006, CurrentYear + 1))))
     user_uid = StringField(u'user')
     role = StringField(u'Role')
 
@@ -122,7 +122,7 @@ class TiersRole(MyBaseForm):
         csrf = False
 
     year_uid = SelectField(u'Année', coerce=int,
-                           choices=zip(range(2006, CurrentYear + 1), range(2006, CurrentYear + 1)))
+                           choices=list(zip(range(2006, CurrentYear + 1), range(2006, CurrentYear + 1))))
     tiers_role = SelectField(u'Role', choices=TIERS_ROLE)
 
 
diff --git a/jm2l/templates/NewIndex.mako b/jm2l/templates/NewIndex.mako
index 39076dc..8b6e945 100644
--- a/jm2l/templates/NewIndex.mako
+++ b/jm2l/templates/NewIndex.mako
@@ -1,6 +1,6 @@
 <%inherit file="jm2l:templates/layout.mako"/>
 <%def name="jsAddOn()">
-<script src="/vendor/timeline/js/timeline-src.js"></script>
+<script src="/vendor/timeline/js/timeline-min.js"></script>
 <script>
     var timeline = new VMM.Timeline("timeline", '95%', '600px');
     var c = {language:{ lang:"fr",api:{wikipedia:"fr"},date:{month:["janvier","février","mars","avril","mai","juin","juillet","août","septembre","octobre","novembre","décembre"],month_abbr:["janv.","févr.","mars","avril","mai","juin","juil.","août","sept.","oct.","nov.","dec."],day:["Dimanche","Lundi","Mardi","Mercredi","Jeudi","Vendredi","Samedi"],day_abbr:["Dim.","Lu.","Ma.","Me.","Jeu.","Vend.","Sam."]},dateformats:{year:"yyyy",month_short:"mmm",month:"mmmm yyyy",full_short:"d mmm",full:"d mmmm yyyy",time_short:"HH:MM:SS",time_no_seconds_short:"HH:MM",time_no_seconds_small_date:"HH:MM'<br/><small>'d mmmm yyyy'</small>'",full_long:"dddd',' d mmm yyyy 'à' HH:MM",full_long_small_date:"HH:MM'<br/><small>'dddd',' d mmm yyyy'</small>'"},messages:{loading_timeline:"Chargement de la frise en cours... ",return_to_title:"Retour à la page d'accueil",expand_timeline:"Elargir la frise",contract_timeline:"Réduire la frise",wikipedia:"Extrait de Wikipedia, l'encyclopédie libre",loading_content:"Chargement",loading:"Chargement",swipe_nav:"Swipe to Navigate"}}};
diff --git a/jm2l/upload.py b/jm2l/upload.py
index c560a43..f78a19e 100644
--- a/jm2l/upload.py
+++ b/jm2l/upload.py
@@ -314,8 +314,10 @@ class MediaUpload(MediaPath):
         timage = Image.new('RGBA', (THUMBNAIL_SIZE, THUMBNAIL_SIZE), (255, 255, 255, 0))
         timage.paste(
             image,
-            ((THUMBNAIL_SIZE - image.size[0]) / 2, (THUMBNAIL_SIZE - image.size[1]) / 2))
+            (int((THUMBNAIL_SIZE - image.size[0]) / 2), int((THUMBNAIL_SIZE - image.size[1]) / 2)))
         TargetFileName = self.thumbnailpath(filename)
+        if not TargetFileName.endswith('png'):
+            timage = timage.convert('RGB')
         timage.save(TargetFileName)
         return self.thumbnailurl(os.path.basename(TargetFileName))
 
@@ -331,7 +333,7 @@ class MediaUpload(MediaPath):
             # Add thumbnail
             timage.paste(
                 image,
-                ((THUMBNAIL_SIZE - image.size[0]) / 2, (THUMBNAIL_SIZE - image.size[1]) / 2))
+                (int((THUMBNAIL_SIZE - image.size[0]) / 2), int((THUMBNAIL_SIZE - image.size[1]) / 2)))
             # Stamp with PDF file type
             timage.paste(
                 pdf_indicator,
@@ -355,7 +357,7 @@ class MediaUpload(MediaPath):
             # Add thumbnail
             timage.paste(
                 image,
-                ((THUMBNAIL_SIZE - image.size[0]) / 2, (THUMBNAIL_SIZE - image.size[1]) / 2))
+                (int((THUMBNAIL_SIZE - image.size[0]) / 2), int((THUMBNAIL_SIZE - image.size[1]) / 2)))
             # Stamp with PDF file type
             timage.paste(
                 pdf_indicator,
@@ -387,7 +389,7 @@ class MediaUpload(MediaPath):
         # Add thumbnail
         timage.paste(
             image,
-            ((THUMBNAIL_SIZE - image.size[0]) / 2, (THUMBNAIL_SIZE - image.size[1]) / 2))
+            (int((THUMBNAIL_SIZE - image.size[0]) / 2), int((THUMBNAIL_SIZE - image.size[1]) / 2)))
         # Stamp with PDF file type
         timage.paste(
             stamp,
@@ -420,7 +422,7 @@ class MediaUpload(MediaPath):
             # Add thumbnail
             timage.paste(
                 image,
-                ((THUMBNAIL_SIZE - image.size[0]) / 2, (THUMBNAIL_SIZE - image.size[1]) / 2))
+                (int((THUMBNAIL_SIZE - image.size[0]) / 2), int((THUMBNAIL_SIZE - image.size[1]) / 2)))
             # Stamp with Blender file type
             timage.paste(
                 blender_indicator,
@@ -526,8 +528,8 @@ class MediaUpload(MediaPath):
             return self.delete()
         results = []
         for name, fieldStorage in self.request.POST.items():
-            if isinstance(fieldStorage, unicode):
-                continue
+            # if isinstance(fieldStorage, unicode):
+            #    continue
             result = {}
             result['name'] = os.path.basename(fieldStorage.filename)
             result['type'] = fieldStorage.type