First of all to gain a solid understanding of XSS I recommend http://lcamtuf.coredump.cx/tangled/ . I think that will help more than disconnected examples. But, since you asked, I'll try to answer from memory:
Case #01:
Look at the first page of the thread; this is a bypass of Gareth's JSReg sandbox. http://sla.ckers.org/forum/read.php?2,29090,page=1
Case #02 and #05 and #06:
These all re
Forum:
XSS Info