I am using WHMCS and the 2 plugins you provide. I have set up an account with enom and left my deposit etc. and it seems to be working right. The page I have been testing is here: http://missterbig.com/bigs-premium-services/ it appears to work until you look a little closer. Clicking Domain checker throws an error.
"Sorry this doesn't look like a WHMCS site at [http://missterbig.com/taierika/] Make sure your WHMCS Integration settings are pointing to the correct URL and that the WHMCS site is set for the Portal template in Setup | General."
Now if you go to that link http://missterbig.com/taierika/ you will clearly see that it is my WHMCS page. So not sure what is going on.
The other problem I seem to be having is with domains themselves. I am trying to set it so my clients can do all their required domain operations on my site but when you try to search for an available domain it does nothing when you hit the Check Availibility button. I also noticed that all the dropdowns that normally have .com, .net, etc are blank. So there are no choices.
I have set the enom addon and added my credentials and all that but not sure what is going on there either.