First is you would need to renew your member access to the software.
$59.00 for renewal for 1 year.

You will end up upgrading to threads 6.5.5
Then you will need to install v7.0? and import 6.5.5
Then upgrade to 7.5.7.

I am not certain on the 7.0 it may be 7.2.
The reason is there is a undocumented quirk where everyone becomes a moderator. Due to some additional fields in v7 versus v6.
Same goes with classic.
Gizmo knows which version to start with I believe.

reading material to start
https://www.ubbcentral.com/docs.php
and
https://www.ubbcentral.com/doc_import.php
and
https://www.ubbcentral.com/forums/u...roper_Upgrade_Route_UBB_Threa#Post172176


Blue Man Group
There is no such thing as stupid questions. Just stupid answers