How can I make a window stay on top?

They are WinAPI functions, you declare them in your BlitzPlus/userlibs folder as .decls file, there's a little readme.txt file in there that helps explain things, or check out the userlibs samples in the code archive to see how they work.

I also recommend downloading this:

http://www.mentalis.org/agnet/apiguide.shtml

to get the parameters and return type information of each function!

Dabz

:)

P.S. Have fun!!! ;)