Hopefully, your team are very serious to your project XIFF. I found lots of bugs in XIFF
when I login my msn "nakoruru1982@gmail.com", and I found that all the jid of the msn roster item are strange.
For example, one of buddis of "nakoruru1982@gmail.com" is "nakoruru19820329@hotmail.com", but node of that unescaped jid is “nakoruru19820329\5c40hotmail.com@msn.nakoruru”
I think the unescaped jid should be "nakoruru19820329@hotmail.com@msn.nakoruru", or "nakoruru19820329\40hotmail.com@msn.nakoruru.
Thanks,