Post installation

I recently upgraded to 4.7.3 to 4.6.9. The old site used Flexinodes extensively. We now want to use CCK and Contemplate, as those two are far more powerful.

1. Do I still need to have node-type.tpl.php template files?
2. New content seems to be okay, but the old content seems to ignore the template I made with contemplate and tries to reference all the flexinode stuff ( thus my first question )

Any ideas, tips, pointers on going from flexinode to cck/contemplate?

When I try to assign a node to a category (I get the drop-down menu and everything), nothing is assigned. I'm not getting any errors, and I don't know where to look for a solution. Not sure how to debug this. Any help?

Thanks,
Justin

Below the title of each node, I would like to customize the list of taxonomy term links that display. Instead of just displaying the term, I would like it to display:

Title of Vocabulary A: [term 1] [term 2]
Title of Vocaburarly B: [term 1]

Can anyone point me in the right direction of either a module or what I need to do? Thank you.

I've seen some sites where you can, say, join as an artist or join as a user. How can I set that up for Drupal?

Thanks!

Does something like this exist for drupal? I was thinking of setting up the initial beta of the launch of my site where members are allowed to invite users to join, etc.. Similiar to how G-mail is set up?

I have created a custom node that I want my users to fill out, so I thought there was a way to make this a part of the registration process but haven't found a way... unless....