Probs with WebCT links?

Hi - Is anyone else having problems with some of the links for readings from the Curriculum on WebCT? I've just tried linking to the suggested readings for helping in Assignment 3 (Module 3.3), but I can only reach one out of the three documents.

Possibly I'm doing something really silly that's causing the problem, but if anyone else is having trouble can you let me know? (Save me from thinking I'm going nuts)

Thanks