You don't see them if you're in Dial-Up Mode (so that pages load quicker). To switch between Full Graphics, and Dial-up just click the link under the W, next to the Calender link. If you're in Dial-up, it should say "Full Graphics" there, and "Dial-Up" if you're in Full Graphics mode.
I think I explained that without confusing myself too much.
"I'm going to go now and demand beer money from my representative. We simply must deal with the problem of my sobriety." - PalpatineW