BTW, the versions of windows that are EOL are W98SE and below; you cannot get any support for them because they are EOL.
The UBB.C install in the member area is there as a courtesy for users migrating to UBB.Threads7 as the importer was created for UBB.Classic 6.7.
As for having to pay for the security upgrades; features come with the upgrades; you're not just getting the security fixes, you're getting the features and support that come with it as well.
Also, nothing is secure, to say your product is secure will only bring more users to try and crack into it.
Also, no freeware solution is secure, look at phpbb, one of the oldest currently built on products, it's an insecure pile of crap; i shut down my community because none of their security worked, their captcha still let bots in, i was getting spam postings from non existant users, etc. none of which i had in UBB.C or UBB.T.
Honestly, if your decision is made up that you're leaving, theres not much of anything anyone can say to change your mind, other than any product will have its issues here and there, and once a product is EOL theres generally no support for it.
