Moved to endpoint encryption area
The files should be now in the encrypted container - so run the executable and enter your password.
Are you SURE it told you "it didn't have enough memory and to try later.." - is it not possible the message was about insufficient space?
I think the files are moved to C:\Documents and Settings\<user>\Local Settings\Temp\McAfeeEERMFormat\Format
before being copied.
This article might help