Thanks a heap, emusan. I just rooted and installed Market on my PE, and all seemed to go well. I haven't gotten Google Talk to sign in properly, but I think it might have to do with user names and passwords (I get sooo confused!).
I'm pretty sure I'm signed in to my Market account properly, since my paid apps show up, but no luck downloading them either. Supposedly I should be able to download them to up to six devices, and the PE is only number two. PE doesn't show up on my device list when I go to the Market on my PC, either. I'll have to mess around a bit.
And don't pay any attention to what that jerk on the "new" forum says. You were right, he was and is wrong, and will probably soon be gone.