Nope, sorry - I've got an IBM but it's not a Thinkpad. And not only that, but it doesn't have X on it at the moment so I don't have a config to send you. I'll see if I can dig out an old one from some backed up files if you want but, really, I doubt it would apply - it's a desktop and wasn't even using an IBM monitor - and I haven't had all that much luck with XF86Config. I was using a busted monitor to begin with, so it might have been coincidence and might not have been my fault or Vector's, but my monitor *did* die right after fighting with X configuration. Don't think you want *that* one.
I'm sure someone will be able to help you out, though. There have to be some Thinkpad users out there. Or do a websearch - is the problem knowing what rates to tell Config? See if you can find some specs on the web. Stuff like that is always very hard for me to find but I do dig it up eventually, usually.