Rasta9 Yeah, so given that you have Sandboxed Google Play services installed and it's still not working, you should forget about MySudo, IMHO.
Well, when you create and account with JMP (which you can do entirely from the Cheogram app), you have to select a server, so that it all works as it should.
I you plan on using JMP, I suggest you take a look at JMP's Frequently Asked Questions, page. It explains most of what you need to know. Regarding the Jabber/XMPP servers, read question number 16, and visit this link, which explains the Snikket thing further. What you're looking for is Snikket Hosting, i.e., a hosted instance, not to self-host, as that is more complex.
Lastly, I suggest you take a look at JMP's support methods here. Their web chat is especially helpful and the staff is very responsive.
P.S.: this Reddit thread may answer some other questions for you.