then after puting details in whm oder form and going to 2checkout for make payment i got this error
Parameter Error.


Incorrect parameters were supplied therefore this purchase cannot begin.

If you are attempting to purchase from a web site please contact the web site so that they can correct the error.

If you are designing your web site consult the 2Checkout.com Admin Area for the proper codes.

Thank You,
2Checkout.com Inc.
. in whm admin setup panel in PAYMENT GETAWAYS in 2Checkout SID i entered my UserName, in Hosting Package editor in 2Checkout ID i entered my ID Number, Thank you.

You could try the WHM forums, you could probably get a better response. Try http://www.whmautopilot.com/forum/index.php

Good luck

Thank you, i will try.