There is an article on mosaic knitting in the Holiday 2003 edition of Family Circle Easy Knitting Plus Crochet. The explanation is very clear, more so than the Knitty article, and it has illustration of the basics. You could try to order a copy from FCEK directly, or try your library's periodical database, or if you're really stumped, I would be happy to photocopy my mag and send it to you. Unfortunately, I can't copy the accompanying patterns along with it because of copyright issues. (The patterns are really nice.) If you want me to send a copy, let me know.
On the needles: Tempting for Kate, cabled jacket for Emma