I didn't want to open a ticket for this, because I think that it may be a "me" issue in trying to set up client exec, but having ventured onto their forums and having found the same issue, I figured that it is a common one and something that I can pass along to the reseller community at Glowhost. Granted, I haven't found the solution to this, but hopefully when I do, it will help out someone else.
Basically, I installed CE and that went quite well. Client exec uses the Ioncube loaders to protect their code. They certainly have put a lot of effort into the interface and I can't say that I blame them a bit. What my problem is that every time I try to add a new user, I get a blank screen when I click update and no redirect page, so I have to refresh or go back to get back to the interface. When I do, the client appears to be added, but there is only a comma from the pull down when you select the client. And, turns out that trying to log in using that information, you can't - the client really doesn't exisit.
I have found this issue here http://www.clientexec.com/forum/showthread.php?p=31582, on their forums, so I re-uploaded the ion cube files in binary only and still seem to have the same issue.
If anyone has run into this issue and has found a resolution, please let me know.
Thanks
CharlesH