How to create a storage location on a nas in BackupExec 12.5?

 Hi I have been trying to follow these articles http://seer.entsupport.symantec.com/docs/299622.htm and http://seer.entsupport.symantec.com/docs/280021.htm but I am having trouble with step 1 on how to validate if the MP 1 is installed and if it is not installed where can I find the download? And why am I not able to use my nas as a storage location in the desktop laptop option? I have searched and searched and I cannot find the answer can someone please help me figure this one out? Thanks your help would be greatly appreciated.