I just wanted to replace bath tub handles so the place was nice for the new renters. A series of impatient moves on my part and I'm now trying to figure out how to replace the cartridge.

The valley faucets are in a townhome built in 2000. When attempting to replace the handle's I broke the stems. I then purchased this cartridge:
http://www.**************.com/images/valleystems8.jpg

The stem part matches perfectly to the one I broke, but when pulling out the cartridge, I broke the bottom part of that picutre. Now I'm wondering after further examination if I don't have this cartridge:
http://www.**************.com/images/valleystems7.jpg

in either case, I have half the cartridge out, the stem part, how do I get the rest of the cartridge out?

thanks early for the help.