The MSU manual could be fit on an index card, and come with the words "Call RamTel". They're very helpful folks.
If an MSU isn't used within a certain time frame (I don't recall the number, 3 months maybe?) service is suspended by the company, you've just got to give them a shout to reactivate it.
Any other problems, like I said, they're very very very helpful, have had nothing but good experiences with their tech department.
Even if you're not having problems, give them a shout once it's set up, they'll help you adjust the polarizer for optimum signal.
http://www.ramtelecom.ca/