UBB.Developers Forums UBB.classic V6.4 - 6.7 Modifications Forum Design Integration 2 questions

Hi, my first post on this board
Euhmm 1st question: what is the html build hack called?? I mean the thing just above this text field.
NR 2: who can I get my ubb to include a whole page, like this site, on your left theirs the site navigation, and all the other stuff, I thought i might try SSI but that won't do me any good because when you go to the Ultimate.cgi here all the other stuff is already included.
Hope I was a clear, it's 3 o'clock in the morning so ...