When you manage to get a hold of the software check the software in to ePO in evaluation mode.
I would test this evaluation by using a "Tag" though other people will have different ways
Go to "Tag Catalog" and create a new tag called "Deploy DLP 9.3" and click next till done.
Then go to Client Task Catalog and create new task called "Deploy DLP 9.3" and from the drop down list select "McAfee Data Loss Prevention 9.3.X.XXX" > action:Install > Branch:Evaluation and then click Save
You now need to create a "Client Task Assignment" call it DLP 9.3
Product = Mcafee Agent Task Type= Product Deployment Task name= Deploy DLP 9.3
Below this you have a section called "Tags"
Highlight the "Send this Task to only computers which have the following criteria"
From "Has any of these tags" Click "Edit" and select your "Deploy DLP 9.3" tag then Next
scheduled status: Enabled
scheduled type: Run Immediately then next and save
Now go to your system tree > select your test machine and go to Actions > Tag > Apply Tag and then select your Deploy DLP 9.3 Tag.
After this has been completed wake the agent up
How about the policy? I will do test deployment (DLP9.3) on several systems while other will still runs the previous version (9.2).
Just use your existing policies and tag a couple of machines with 9.3
Never test in your production environment. Setup a test environment and evaluate the product there. DLPe 9.3 Patch 1 is available in the downloads site. Check whether you are using the correct Grant ID to login.