I've often seen xterm recommended here as a way to diagnose and fix problems, so I recently downloaded and installed it. But I have absolutely no idea how to use it, and I haven't been successful in searching for documentation or a user guide. Beyond installing xterm, any suggestions for me and this poor chap with the crippled tablet?

[PS: I've also often noticed on this site that kind and helpful power user/programmer types don't realize that the vast majority of owners of the N800 and other tablets are not experts in using terminal programs and don't have a clear grasp and detailed knowledge of the underlying operating system and file architecture of their devices. I don't even know where to start educating myself properly, apart from reading as many posts as I can here on Internet Tablet Talk. Have pity on us, oh wise geeks!]