UBB.threads PHP Forum Software Community Forums UBB.threads Installation and Upgrade Support SQL ERROR: Unable to do_query,

The upgrade should take palce from either:
UBB.threads 6.5.x
UBB.classic 6.7.x
Your 6.02 install (don't know if you had classic or threads) should be upgraded first to either one of above version (which are available for download in the members area) before the upgrade to the 7.x series.