What do you mean by "The forum will not change pages"? The forum is very busy at the moment because of the release of Virtual Families and you will possibly get the occasional error message and/or slow navigation. If you wait half an hour or so it will usually be working again thanks to Barbara, but even Barbara does, apparently, sleep at some times.
You should look at the posts in the Virtual Families forum before posting, or at least the first few "sticky" ones.
This sticky post gives the solutions to the puzzles.