I was a Columbia House member years ago and would like to rejoin. I noticed that I have to enter a prefered status number and it has been so many years I can't find any account numbers. Does this mean I have to join without a code and pay shipping? Thanks for any advice in advance.

You really should read the Columbia House questions thread before asking questions. And the DVD Club FAQ, which is a sticky post.

Just find a code that doesn't require a PSN. I don't know any off the top of my head, but they're out there. Alternatively, you can use a phone enrollment and when they ask for the PSN tell them you don't have it in front of you, they'll usually accept that and go on with the enrollment.

Also, I would recommend taking Cheato's advice. Take a look at the FAQs and the questions thread, they should answer most easy questions like this. If not, the questions thread is a great place to ask.