paid registration and user profiles?

I used the LM paypal module for membership payment before.

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Adoption Agency Reviews http://www.adoptionagencyratings.com

i am creating a site that requires u to pay to sign-up. I was wondering how i would be able to do this, possibly by adding an ecommerce module?

I'm not sure if any are available for d6 yet-- there's a couple of ways to search for them:

1. goto drupal.org, click on the modules link, filter for d6, and browse the appropriate categories
2. enter "type:project_project paypal" in the search box above, but you'll have to check version compatibility manually
3. search at http://drupalmodules.com

Also, I would like to extend the default user profiles to add a few more fields as well as having them tab-able, much like the user profile that are used on www.drupal.org (here :-)).

drupal.org uses the core profile module-- enable it and customize your site profiles at admin/user/profile

I asked about extending the user profiles on the IRC and i was told to edit the profile module. Where can I find this module if it comes to where I have to edit the user profiles manually?

same as previous answer (admin/user/profiles)

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