I see that when I try to buy the KHPro reseller service, WHM (Web Host Manager) is an add on at $5/month. However, on the plan comparison page it is listed as part of the deal.
I think you are referring to WHMCS which is a $5/mo. WHMCS is a helpdesk/billing solution we offer to all reseller and VPS customers. WHM is included with cPanel on all our reseller plans. Hope this clears things up.
I tested out both Clientexec and WHMCS recently and WHMCS wins hands down for me. There are a few threads discussing the merits of both, so the search button can help you out.
