A version 3.0 iOS receiver is far too old to support the Citrix Mobile App SDK. If you must use an older version of the receiver then you won't be able to use this SDK.
FYI the official forum for the Citrix Mobile App SDK is here:
http://forums.citrix.com/forum.jspa?forumID=1366&start=0
You are much more likely to get a response to your questions if you post in that forum.