I've got the same problem.
Coppermine install: http://www.ankewehner.de/elfwood-d/galerie
Forum install: http://www.ankewehner.de/elfwood-d/forum
Coppermine version: cpg1.4.2
Forum version:phpBB2.0.18
Test user account: test3 / test
BridgeManager settings:
Forum URL: http://www.ankewehner.de/elfwood-d/forum
Relative path to your BBS's config file: ../forum/
Use post-based groups?: I think "yes"
I tried to access the bridge manager.
I was logged in, and got the error message
Fatal error: Cannot redeclare class core_udb in /mnt/ja2/02/855/00000018/htdocs/elfwood-d/galerie/bridge/udb_base.inc.php on line 22
Yes, that is exactly what I did, up to step 4. But I cannot perform step 5, because of the error message I get when trying to access the bridge manager.
I just tried again to make sure I followed all the steps correctly, still the same.
Don't hijack other people's threads. Update to the latest versions as mentioned in this link.
http://forum.coppermine-gallery.net/index.php?topic=24032.0