The best thing to do is make your changes through your own plugins. Then upgrades are much easier.

There are ways to know what files have changed. VCS like SVN can help this way. diff tools also. You can also use Elgg's trac or svn repository to see what files have changed. Here is the page to get you started with that approach: http://trac.elgg.org/log/elgg/branches/1.7?rev=6899

Tnx Cash.

This link helps me a lot.

Yoram

Thanks, jaxcatz.

Apparently I was missing a little something with understanding.
Now everything working OK.

Thanks GMA

Yoram,glad your problem is solved. If you want bigger granularity of access, the GPL version of vazco_groups plugin allows you to define access rights for certain widgets. You can show eg. group files to all users, group albums to logged in users, while group members only to a members of the group.

Hi Mike.

Thanks. I'll check this plugin.

Thank you...
Do I need to put it only on the main page (index.php) or in every page on the site (it's almost impossible)

Yoram

just use notepad and create a text file name it robots.txt with these two lines and put it in your root of your domain.

This disallows google

User-agent: google
Disallow: /

This disallows all

User-agent: *
Disallow: /

This allows all

User-agent: *
Disallow:

Just that simple...

@Yoram : You can add this to the header.php file. So it will be applicable to all pages.