Upgrading to ubb.classic 6.7.3 itself will help tremendously with the server load, Charles did a lot of work making classic much easier on the server during te 6.5-6.7 versions. If you are running a dedicated server it should be able to run classic for a while unless you have *lots* of posting/searching going on - even then the quick reply and some improvements in the search function in the 6.6+ versions will help there. Don't allow searching of all forums for one (hard on any largish forum, php/mysql or flat-file
).
Oh, install more recent versions of active state's perl too, many improvements in the code and the upgrade is a free one
Having said all that, threads is where you'll need to move at some point, tho you can extend the life of your current setup if you'll just upgrade to 6.7.3, upgrade perl and php on your server.
