UBB.Threads should work on any Linux/Unix distribution; I myself have it running on CentOS5 and CentOS4.4.

As long as you meet the minimum requirements of MySQL and PHP (which in CentOS5 should be 5+) it should work without a hitch.

I am a Web Development Contractor, I do not work for UBBCentral. I have provided free User to User Support since the beginning of these support forums.
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