I'm finding that a whole lot of questions get posted on these forums with very little background searching done by the asking users.
I can appreciate the fact that the built-in forum search may not be the best (they usually aren't). So I would recommend using Google first with the argument "site:autoitscript.com" (remove the "") following with your question.
E.g .http://www.google.com/webhp?ion=1&espv=2&ie=UTF-8#q=site%3Aautoitscript.com%20how%20to%20create%20a%20gui
Majority of the time you will find your answer on the first page or the second page.