Hello,
So far what i read it WHMCS module for Proxmox VPS and Cloud from ModuleGarden is an excellent product for what it does. I am so ready to buy both module but am unable it work. From server setup of Proxmox module in WHMCS i keep getting "Login to Proxmox Host Failed". ModuleGarden support even tried to see what causing the issue. The conclusion was that Module itself is ok, it is Proxmox server not returning something API related. I am using Proxmox 3.1. There has to be other people who has the version 3.1 Proxmox and was able to make it work. Any help from anybody?