Yes, /etc/apt/sources.list contained in the current ISO (2013.02) is working just fine. Or at least it is for me 
-- Eddie
Thank you so much for confirming all this.

My brother is stopping by tonight with his notebook computer and his new printer. I'm going to do a reinstall of PCLinuxOS and then hook up his printer. Should be easy to get his printer up and running now that I know hplip is the latest and greatest and supports the P3520.

The bump in the road was I didn't update is system since first installing. He was always using it and getting work done. I warned him that I'll probably need to do a complete reinstall down the road. No problem. He LOVES running Linux and not having to deal with all the Windows problems.