Try this: http//www.internettablettalk.com/forums/showpost.php?p=131434&postcount=14

I accidently had http://http://www... in the link.

as for how to tell what xterm command to use to launch an app - well usually it's the name of the app but not always. I usually just use trial and errour to figure it out. In general if you can find the app in your /usr/bin/ diretory then that's what you would use in xterm. Some games are found in /usr/games/ so to launch ScummVM you would type the following:

/usr/games/scummvm

xterm automatically assumes /usr/bin/xxxx so that's why just the name of the app will work if it's found in that directory.