If its not in the software manager (hit refresh in bottom left to be sure) then go to the download website and type in your grant number to access all your downloads.
Software manager is great when it works, but not everything comes through to that, so always worth keeping the grant number and download link to hand!
I clicked Refresh button, but can't see it. I'm using Trial version so can i use grant number to download in McAfee Site?
I dont see any DLPe installs under my software manager either. I would speak with your sales person to get you access to the DLP install files.
I had this problem, had to install locally from the server (instead of from my workstation) and I had to use the Global Admin account, not my own admin account.