I don't know where it is in XP. You might search for "Disk Management" in help. You should be able to change the letter assigned to the drive. That might be OK if your Poser files are the only things on it and you won't mess up anything else. I think Correct Reference will only do image files if so and you have some absolute paths to .obj files those would still be a problem. You could also use a text replacement utility I suppose to change all the occurences of D: with E: in those folders but I'd be real careful trying that.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken