Splitfyre: if you don't know what to choose in upgrade.cgi BUT you're sure you didn't have 1.9, choose the 1.0 - 1.7 one, I don't think it can harm... If you just want to know for no reason, in /vars_calendar_events.cgi, if the beginning of every line is something like '00000001', it's 1.6/1.7. If not, if in the Member files line 33 ([32]) is always empty, and line 56 ([55]) sometimes has something, it's 1.8. If not, it's 1.9.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.