[1] Login to HELM [ Using your reseller login information ]
[2] Click on Users
[3] Click on Add New
[4] Fill up the form and press Save
[5] Now click Users link again
[6] Click on the user you have just created
[7] Click on Packages
[8] Click on Add New
[9] Select your desired package from drop down and enter some friendly text about this package on upper textbox.
[10] Press Save
[11] Now click on the package you've just created.
[12] Now select the account status to make it active or whatever you want it to be.
[13] Click on Domains
[14] Click on Add New
[15] Enter your domain name's first part [ excluding tlds ( .com,.net,.org ) ] in first text box and domain TLD/Extension [ .com,.net,.org ] in second text box.
[16] Press Save
You have successfully setup new domain in your reseller account.