The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.
Updated for Support with WHMCS 7/8
Resell VPS & Cloud Dedicated Products from Liquid Web
Automate the sale of VPS servers & give your clients the ability to completely manage their VPS server inside of WHMCS, using the industry leading SolusVM control panel.
Kevin Young @kevin6271
The FREE BudgetVM module is an excellent addon if you are a BudgetVM reseller. The developer offers great support and is willing to assist you with any modules issues.
Anthony Ashington @anthony5729
Great plugin! Makes it really simple to manage our resold products on the BudgetVM network.