13
sure.
first, you have to export the phpbb MySQL database with the MySQL client or with tools like phpmyadmin.
then, if i remember well (i formatted my hdd two months ago), you have to execute the sql code contained in the program i posted (see above). only then, you can import your old phpbb db into the new XOOPS db.
there are some differences between the two forums, for example phpbb saves the [code] tag like [code:xxxxxxx] with xxxxxx a number of which i don't remember the function. you'll need to manually edit all those crappy things.
if you need help, just reply and tell what you need.
see ya