Which .php file edit to change nopic.jpg to nopic.gif
edit the files catmgr.php, index.php, modifyalb.php and search the codeof those files for "nopic.jpg" (use a plain text editor - notepad.exe is fine. Do not use Frontpage or similar). You can find out such stuff easily by using the built-in search of your OS, just search all files in the coppermine folder on your local hard drive and specify that they have to contain the string you're searching for.
Joachim
done, thanks ;D