Need Session ID for logout

[Gephri]

I have the following issue when trying to bridge coppermine and phpBB using CPG Loginform Plugin 1.1 bu Stramm:
A user can not log properly because the SID doesn't carry through the process.  Any idea how to get the logout process to recognize the phpBB session id on logout?

Coppermine install: /cpg/
Forum install: /phpbb/
Coppermine version: cpg1.4.10
Forum version: phpBB 2.0.22
Cookie name/preifx:  ss_pg_cookie

[Nibbler]

Get the plugin to use cpg_udb::logout() or if that's not possible the session id is stored in $cpg_udb->sid.