HI,
1) Export all the db table that is start from mod_hostx
2) Download addon module,template,orderform, Root files of hostx and the language overrides file.
3) First import all the db table of hostx to production database.
4) Now upload all the file in given path
addon hostx -> Whmcs/modules/addons/
template hostx -> whmcs/templates/
orderform hostx -> whmcs/templates/orderforms/
overrides -> whmcs/lang/
We are excepting that your product group id and product id is same as the devsite as in database product group as well product id has relation with pages id. If that is different then you need to reassign the product groups and products to pages again in production site.
