If you already have a customer portal for your arborgold site, the customer portal link would be yourcompanyurl.arborgold.net/cp For your Company's customers they will be brought to a page that looks like this:

If your customer has already signed up they can simply put in their email and password combination, if they are a brand new client to your customer portal they will need to click the Register button in blue at the bottom.

Your customer will need the following information provide to them:
Customer #: their unique customer number in your arborgold site
Zip Code: their billing address zip code on file for the customer
email: the customer can use any valid email that has not been registered under your customer portal yet
Password: a unique password combination
Confirm Password: the same unique password combination
When all accurate press Register to register the account.