I have used and installed ubbthreads before. But it always worked.
The SQL database already has a working PhotoPost installation in it. I don't want to delete it.
I installed ubbthreads fro scratch using that same SQL database. ubbthreads installs (everything passes). Tables are created (no errors). Delete altertables, install.php and createtables. Fine.
Run the script on the bottom of the last page of the install and I get a blank page, Then I get a "Could not open page" error.