IMO Application for iPhone 4

Ok so Im completely new to this. I have the iPhone 4 16GB with Telus, and I downloaded the application IMO- Where it allows you to talk on Skype, MSN, Yahoo!, etc. Anyway, IMO will let me sign into MSN from my phone, but wont let me log out, stay logged out.. and sign in from the computer.
So I go to the application, sign in then back out again, then try again to log in from the computer.. and it still wont let me. I tried signing into another account watching what happens while I redo all of this over and over, and it shows me logged in the entire time.. IMO wont let me sign out, and signs me back into msn on my phone.. when I try to log in on the computer. EVEN after I delete the application.
Help please.. Ive tried almost everything I could think of.
iOS 4