Assistance with Enom integration

Hi there, I was wondering if there is anyone out there who has a set of API code they don't mind sharing to assist with Enom integration. We have signed up as a re-seller and so far have found Enom less than useful with regard to integrating their product. I mentioned that we are using WPMUDEV tools and there response was to suggest we use WHMCS which is a possibility but I'd rather not if I don't have to.

Any opinions or advice would be extremely useful. I can hack about with php but developing from scratch is probably beyond me and I don't have the time to be fair. So what would be great is some form of template or plug-in that does the hard work of enabling a customer to 'just buy a domain' from within a WPMUDEV enabled environment.

Make sense?