Fatal error after upgrading

[Starlight]

Hi,

I thought I'd better start my own topic...
Well, today I upgraded the gallery and the modpack to 1.4.20.
Everything's fine except one thing.
displayimage.php doesn't work.

No matter what theme I try, there's always an error message.

Fatal error: Call to undefined function: get_comments() in /var/www/web572/html/gallery/include/themes.inc.php on line 2465

I don't know how to fix that. Help please!

http://starlights-graphics.de/gallery/index.php

[Stramm]

Make sure you uploaded all files overwriting the existing ones (bridge folder, too)

[Starlight]

Oh... Thank you! Kind of embarrassing... 
I really thought I had uploaded all the new files.
It works now...