I'm having the same issue. I've been beating my head against the wall for 3 days now.
I have the DB installed
There is IVUser logon for database
there is a virtual directory for the issuevisionweb folder
I have done the asp_reg tool as said in earlier/other posts.
When I open the VB project and run it, I get a logon screen and then the error occurs. "an unknown error has occured"
Please help...
Thank you (in advance,naturally)