Hi,
I am worried on this part, as you mentioned you don't have the privileged to do anything on server side.
Do you have latest Sylink.xml file? Have you taken backup of Sylink.xml prior to setup new image on OS?
Without Sylink.xml file you can't restore the communication with the SEPM server.
If valid Sylink.xml is there the just simply follow the steps given in the following article to replace it successfully.
http://www.symantec.com/docs/TECH157585