UBB.threads PHP Forum Software Community Forums UBB.threads 6 Version 6 Support Error Message "We Cannot Proceed."

I wonder if any of you can help me . . .

What's invovoled in getting version 7 or 6.5.5. ? What's the cost of each? Is the subscribe/unsubscribe function working in both versions? Apparently, we've never had a version in which it works consistently.

Finally, what does it cost to have someone install it and how do we purchase a newer new version?