I've just done an "emerge cups" or used the one in the repos (on my laptop)
Seriously, though, I never got CUPS working on my Zaurus. I don't know which package you need, so perhaps untarring them and seeing what they contain is the way to go.
Here's the thread on my printing adventure:http://www.oesf.org/forum/index.php?showto...=how+do+I+print
It may or may not help. Searching "cups" on the forums also brought up the "new packages" thread, which may have a newer version for you. That might help.