Module development and code questions

I'm making a nod modifying the book module, only i've not edited the TAXONOMY or NODE modules and when i try to view the content i created i get this error.

warning: Attempt to assign property of non-object in C:\wamp\www\modules\node\node.module on line 675.
warning: Attempt to assign property of non-object in C:\wamp\www\modules\node\node.module on line 691.
warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in C:\wamp\www\modules\taxonomy\taxonomy.module on line 31.

Hi all,

I've readen I have to put my own modules in /sites/all/modules... but I have a question, where have I to put my downloads modules but not development by myself?

I hope you understand me.

Thanks for Drupal

Just installed tinyMCE module (java WYSIWYG editor). All seemed OK, configuration correct, plugins and options seen in the control panel, editable. Correctly configured default format, users aso.

Hi there,

I was just wondering if anyone knows ho to display images as thumbnails and not links using a taxonomy block? I just want to show the 5 most recent images that have been posted to the website as thumbnails and not as links.

Any help anyone can offer would be greatly appreciated.

Thankyou.

Sarah :)

Hello

I found bug in sitemap module.
I'm use Path module. When i create new page and change site map priority, this page appear
in sitemap.xml as /node/123, but not path synonym.

Part of sitemap.xml:

I want to make a table which can be sorted if i click on headers . However,this sorting must be effect to all pages. For example, my database has 3 fields : id,name,date . I list it on many pages. When i click on header Id. It will show the sorted table base on Id even though i move to other pages.
How can i do it ?
Can anyone give me a simple example to do that ? Thanks for all your supporting.