REGISTRATION/USERS required or optional

I would like to know if not having registered users/customers might be the cause of the problems we are having . We are not using login/registrations for our customers and I see 'user id' being referenced to in the cart as well as in the database tables. I could not get Universal email to work even though it is installed as an extension, it doesnt gives the option while configuring checkout.

I have been working with setting up our cart to save data in our database, but it is not working properly.

Followed every instruction is gsg , for ecart5 , data assist, sql, etc...the Database is set up from the preset default, connections work apparently as the different pages work fine
(almost).

Until the database collection tags were not inserted I was able to go all the way to make payment at authorize net, but now the customer information (name address,shiiping city ) is not even being passed on . The amount of the purchase is ok, taxes included ,UPS fine... it reaches authorize net fine.

ANy suggestions will be much appreciated !!