Don't want new customers to be able to sign up.

[FragaGeddon]

Basically the zen cart will be for members only.
Is there a way to disable a customer from creating an account?
And also would an admin be able to create a customer account?
Also I'd like the ability for the customer to add a picture of themselves.

[kobra]

Is there a way to disable a customer from creating an account?

One that will function - yes
admin > customer details > Customer Approval Status - Authorization Pending >
Select from

Customer Approval Status - Authorization Pending
Customer must be Authorized to shop
0= Not required
1= Must be Authorized to Browse
2= May browse but no prices unless Authorized
3= Customer May Browse and May see Prices but Must be Authorized to Buy

And also would an admin be able to create a customer account?

Not with the default code - there may be a module but a password must be created also

Also I'd like the ability for the customer to add a picture of themselves.

This will require a bit of custom coding