Module development and code questions

Hi!

I have 2 drupal sites. I need to retrive from 1st site node information and submit it on 2nd site (and from 2nd to 1st).

I'm newbie, so I looked for some examples and can't find it. I saw this post, but probably it is not a php-code.

Can anyone show me exapmles of code to retrive node information from 1st site to other site? I need to include this code in module file.

Should I enable drupal.module on this 2 sites if I want to use xmlrpc.php?

Is it possible to get a tagcloud that generates based on the results of one selected term? In other words once I chose Term A, can I see another cloud showing other terms available with pages with Term A on it?

I have a multilanguage site and translated categories using taxonomy and I cant use Movie Reviews module in multilanguage.
If I change from the default language when composing a review and push preview, it loses my language setting and doesn't come up with the language-specific categories as it supposed to. It says "If you change the Language, you must click on Preview to get the right Categories & Terms for that language" but it doesn't do that. So I can only write movie reviews in default language.

Hi! I installed i18n and all parts of it and it works nice but there are some strings I cannot translate because it doesn't find the original english term from drupal. E.g. the main menu items "Forums" can't be changed and some other, e.g. "feedback" and "administer". There are other occurences of these that are translated fine, but with these the non-english page looks like a mess.

Anyone pursuing a traffic module? I'm thinking something could be cooked up to use this service (seems possible):

http://www.bindingpoint.com/service.aspx?skey=4672

Is there a Hook for when a module is unloaded.

Example:
I create a node module.. when I unload the module.. the nodes stay active but not all the data displays as the code is not there to load it up..

I would like to when someone unloads the module to insure all the nodes are set inactive, and once the module loads again I can re-active them..

I don't see those options, to either do something once it is activated or de-actived..

ideas?