Drupal 7.x

I attempted to install a couple of development modules - Twitter and DrupalChat - just to see how they worked. When it came to activating them (DrupalChat in particular), I got the following error message:

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 26 bytes) in /home/tactical/public_html/includes/menu.inc on line 326

Now I have disabled these modules - and attempted to uninstall DrupalChat, although it hasnt disappeared from my module list - and I still get the same error every time I attempt to activate an installed module.

Hello,
Found some code which must to help me display menu of ajax-enabled links, but after searching for some information i wasn't able to find anything about this.
After experimenting with this i can't understand how to use #href in this code and finaly how to use this for my needs?
The code:

In Drupal 7 is it possible to apply the accordion menu to the Main Menu? In my Accordion menu block I have "main-menu" selected as the menu to add my accordion effect to. I then added that menu block to the "first side" region. When I view the pages with the menu block the accordion does not work.

I have read a few post about possibly not being about to use the main menu in this menu block but am not sure what to believe.

Any info would be great.

I want to display a block with rotating images using Views Slideshow, but using a new content type that allows me to upload multiple images to each node. Okay, I know how to make a Slideshow out of images in a node the normal way, but that means if I want to display 10 images in a block, I have to create 10 nodes.

When upgrading from Drupal 7.0 to 7.7 everything went smoothly but 24 hours later I get a completely blank white screen. After searching drupal.org to fix it, I was convinced that cache could be the main cause here because I wanted to clear the cache but the "cache" table in phpmyadmin has error it reads Incorrect information in file: 'filename' and hovering over the "Empty" tab to clear the cache says table seems to be empty.

Please help, what do I do?

I have a php script and I've been trying to embed that script into a node/page.

I've tried to include the file but it just errors out.
include "script/index.php"