Ok, I have used ACAT recently, i have 2.1 on here now, its fine for ripping, just not encoding.

To answer the Xing related thing. Um, your way out :)
Audiograbber is just that, it grabs the tracks, it has an inbuilt front end for making mp3`s using external enocders, such as XING or lame, that the only relation.
It just acts as a gui for Lame.
ACAT is audiograbber, with xing built in.
I`ll get flamed for this, but if you want Opticom Mp3 Producer Pro 2, let me know..