basically search engines only catalogue information that the webdevelopers give them permission to. The permissions are specified in a file called robots.txt. the wayback site only saves the information which search engines have permission to spider. for some reason boa has the portal blocked - hence the error.
even without that error i doubt such a site would work though simply because the forum is built using server side scripting and a database - neither of which web-surfers (which is all wayback basically is) have direct access to. so without the direct access, it's impractical to effectively save message board forum data
does any of that make sense?
The site would work!
If it can be viewed in the web browser it can be saved. Or even more so if a request can be made to the server and it sends back a response it can be saved.
Also what is the Acid database? Is that just like a Forum category?