Module development and code questions

Hi
I'm getting a bit confused here.
I have gallery2 embedded in Drupal and all is working well. What I want is to get rid off any html being used input formats . At the moment it is limited to filtered html, but I'd rather bbcode. I know that gallery2 people have contributed to a drupal bbcode_wysiwyg module , but ...
Where do I get this module ; or where do I go to see its development ?
Thanks
kate

I have a number of sites running off the same Drupal installation (multi-site). I just installed a new module and would like to enable it for all sites.

Is there a method for doing this without going to each sites 'admin/modules page' and manually clicking the checkbox and submitting the form?

I am looking for a way to make certain users of my social networking site to set their profile to private, so only their friends can access the content. I have looked at a few modules and posts, but I am not finding what I want. Is there a way to add a buddy list (I use the buddylist module right now), and only those on the buddy list can see the blog in question, while all other blogs default to public? Kind of how Facebook allows you to make it so only your friends can view your profile, or those in your network, or everyone, or how private, underage myspace accounts work.

how do I use hook_cron in a module? I just say blah_hook and throw in some code and it willl execute whenever the cron is run?

What's the deal w/ the location_views module?

The module is missing from the main modules page, and the download link is missing from the location_views module page. However, I did find the code in the CVS repository.

Hello

currently the text describing an event is unstructured.
How is it possible to force a user to fill in fileds of some kind of a form?
My idea is, that the text is stored as xml and fields with now value are not visibel execpt in edit mode.

Has somebody already worked on this subject?
And what to do to solve this problem?

Regards
Reiner