Post installation

I've just installed Drupal for the first time and most of it is working very well.... But I've tried to install some new modules, most of them work but some of them give me an error, the same error with every module...

"Fatal error: Call to undefined function: node_get_types() in /home/wifigame/public_html/drupal/modules/og/og.module on line 1568"

That line is...
"foreach (node_get_types() as $type => $name) {"

Does anyone know whats wrong with it? This has happened with quite a few modules now. This is the Organic Groups module....

I have recently created two drupal sites. On both I need to have an account that can edit any content on the site, but does not need any admin rights. Basically, they do not need to fool with anything about the site setup, but they are responsible for any content, (pages, stories, etc). One one site I created a user and gave them all the rights I thought they should have and it seems to work fine. On the other site, I gave them the rights and they cannot edit any of the original content I put out there using the default admin account.

I'd like to display some menu options only for specific roles.

I've seen how to customize blocks (http://drupal.org/node/27720), but I don't see what to do with that, unless someone tells me how to display menu options inside a block.

TIA for any hint.

Hey guys,

Folks,

I'm using D 4.6.3 and the project module (module file revision 1.195.2.3) has
a critical usability bug that was fixed in 1.204 onwards in MAIN. This has to
do with the main project page showing no projects (empty) even though there
is a project created, because of some release feature not being used. (I don't
need the release feature)

When I try to view any of the xml rss feeds at http://philosophy.answerz.be, I get the following message:

-------------------

XML Parsing Error: no element found
Location: http://philosophy.answerz.be/?q=taxonomy/term/13/0/feed&.xml
Line Number 1, Column 1:
^

--------------------

Any idea on how to fix this? It was working yesterday.