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.
First Release
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.
ARP Host @barry2916
This is awesome I can now resell Hivelocity Dedicated Servers the best Dedicated Server company!