Please don't flame me; I have honestly searched and searched to find the answer and did not see one that was exactly clear.
Initially, I was hoping there would be the ability to simple set a price for being able to place an ad using the built in Ads module - I see that is not the case. So, fine, I created a membership level that will allow the user to place ads.
With the membership level module added, payments added, etc., I notice there is no built in (unless I am missing it) way to simply sell memberships.
So, I am assuming this is the correct way, but please let me know if I am not on the right path. Maybe I am and just need a little reassurance:
To sell membership levels to accomplish the goal I had in mind, you need to add the store module, sell the membership as an item in the store and then manually (no big deal - this certainly will not be any mega site) upgrade each member whose sale is completed?
.... :D -- Thank you in advance for the help! Any one out there who does custom work, etc., please feel free to look my way... I'd like to find someone who is reasonably priced to do some back end things for me.