did you check
www.gi.com - motorolla bought General instruments:
the remote which is supposed to work with DCT 2000 and other GI digital boxes is XRC 200, it is on that page. Digital cable boxes require 3 digit channel command and a lot of remotes only give 2 digits, so the channel doesn't change. I was pleasantly surprised that Panasonic ShowStopper - hard disk recorder is well suited for control of my digital cable box, its remote is OEM version of One-for-All remotes (I think).
I don't know if the remote can control cable box, since ShowStopper itself controls cable box to switch channels. Anyway the code for the box on XRC 200 is either 002 or 017 try it. If your remote accepts 4 digit codes add one zero 0002. Email me if you need further answers, i might not check this thread again.