Drupal 7.x

My website has already been designed and it supposedly ready to go. But I am setting up the e commerce side and when I went through paypal for the consumers to set up payment it asked me if I would like to have paypal set up up the username and password. Does Drupal set the username and password once payment has been made or should I let Paypal?

I have a feedback block with some text area on my home page(static block, now I want it to be dynamic) where if user enter some feed back and click on the submit button then along with this feed back a form should be opened with my required fields...

Once we submit the form then complete information should be available at the same place. The feedback entered there may or may not visible in web form but the content is available.. at admin..

I need to display the contents of a field, but I don't want to display the label. The field itself contains a series of mp3s with an html5 playlist interface, but I can't seem to display it without it's label in the node template file.

I'm using

      print render($content['field_mp3']); 

but that obviously doesn't work. Any help would be greatly appreciated, I'm a whole years worth of rusty.

SR

I've started using a theme called Marinelli and in the info file there's a bunch of settings variables. What are these for? I know what regions are for but I can't find any information about settings in the theme.info file - thanks.

How these guys below connect to the drupal theme?

settings[bartext] = Slide Down
settings[bartext2] = Slide Up
settings[breadcrumb_title] = 1
settings[breadcrumb_title_length] = 50

I'm working on a module that tracks a user's recent activity (node creation, comments, and the like) and I wanted to add an "Activity' tab to the menu in the User's Account page (so the tabs in the account page would go something like 'View | Edit | Activity'). The code I'm using in my module is as follows:

I am trying to figure what the best approach would be to build a simple file sharing system (similar to the functionality of yousendit.com). I need the Users on my site to be able to share files among each other. Say I upload a file, I only want specific user(s) to have access to it and block it from every other user. So that when these files are shared with these users, they get an email with a direct link to the file where ONLY them can see without log in (so i guess i can have the link expire after a while).