We are constantly working on it at the moment.
We are going to support communication between Office Communicator contacts within MSN and Yahoo! in IM+ and need some help from our users.
Please send us your IM+ log file selecting "I have another question" option under More / About / Support.
Your IM+ log file will be automatically attached to your support request. We will add your account to our test accounts' contact lists and exchange several messages.
Please make sure to post a link to this thread into issue description field
SHAPE Services Support Team