Hi Mao,

Your file path for mod rewrite appears to be correct. I would ask your host if they have the server configured to allow for mod rewrite, not all servers are.

You can also try: (wohtout the leading / )
cgi-bin/fatbomb/fatbomb.cgi/?skin=skin1&keywords=$1

BTW, what error/results did you get? This info is always helpful. Instead of saying something "doesn't work', please post what the results were.

PageBomb doesn't make scripts, it makes .html pages. They can be uploaded "anywhere", however you will need to adjust the path the SSI tag used depending on where (what folder) you upload them.