Post installation

If I setup a number of sites sharing a single database with a database prefix (site1_, site2_, site3_), could a user of site1, by adding some php code to a page, connect to and view or modify data in another part of the sql database prefixed site2_ ?

With 4.7.2, can I filter menu items (specifically primary links) by role?

I have screwed up our site severely but I am hoping that it is only through simple means.
When we post new content or choose to edit the content we can not access the sub settings such as
Input format
Authoring information
Publishing options
Comment settings
Menu settings
URL path settings

I know that they are there becuase when I cut / paste they paste:). I just can not get them to expand!

I am having difficulties getting the search to work at the particular hosting party of my site. Unfortunately they are quite restrictive in what's initially allowed (although they do open holes if need be).

Note that this is not an intermittent problem as I read in another post. Regardless of the search term or the number of repeated attempts, this error always pops up in the logs. I'm getting an 'internal server error' on the browser.

My question therefore is: is the following error I'm getting when I submit a search term an indication that (a) the hosters PHP is broken, (b) that something is locked down that should not be or (c) that is something wrong with the drupal install (for some reason; everything else seems to be in good order).

Type	php
Date	Saturday, 29 July, 2006 - 15:56
User	Paul Lemmens
Location	http://www.pegasusvolleybal.net/search/node/kampioen
Referrer	http://www.pegasusvolleybal.net/admin/block/configure/search/0
Message	preg_match(): Compilation failed: internal error: code overflow at offset 8287 in /home/u66000/pegasusv/bizx_html/modules/search.module on line 1135.
Severity	error

So I need help figuring out the cause of this rather peculiar message. In it's entirety it doesn't bring up any results. Several subterms do work, but don't point out solutions that I could try. The "code overflow" search term mostly leads to CSS related posts.

I'm trying to make this bookmarklet work:

.../?q=node/add/story&edit[title]=the title&edit[body]=the body

Prepopulate is instaled. I cant use clean urls.

Only title works and appear in the form, body doesnt work.

Thanks for any help!

Hi,
I'm using Drupal 4.7.2 CCK and Views to try to make a searchable classifieds. I think I know how to proceed but would like to make sure.

What I have done:
A) Created a content type: Ad with two fields decimal: Price and text: Description.
B) Created several vocabularies associated with that content type, Such as Location: manhattan|brooklyn|bronx|etc Type: for sale|services|housing|etc
C) Created a View called Search Results.
D) Added above fields and taxonomies to the view fields, along with whether things would be sortable by them.