Module development and code questions

Hi,

I'm learning to code in PHP/Drupal..need some basic info ..please.

I'm developing my first custom node module. It writes a record to the table, academic_info for each node created. The primary key consists of multiple fields.

I see a "duplicate entry....." error is generated in Drupal when the user attempts to create a node/record that already exists in table, academic_info. However, I observed that a record is still created in the node table for the node that was submitted.

I have my Flickr random pics block working, but the "My Account" page comes up with tons of errors:

Guys I'm newbie here in drupal, I use the audio module and I get the following errors:

* The directory files does not exist.
* The selected file /tmp/audio/light.mp3 could not be uploaded, because the destination files/audio is not properly configured.
* The following errors were encountered, preventing the ID3 tags from being saved: filename is undefined in getid3_writetags

I'm using 5.1 version... Can somebody help me why i get these errors? Thanks a lot!

I get an error that says:
Warning: Table 'messcast_drpl1.url_alias' doesn't exist query: SELECT COUNT(pid) FROM url_alias in /home/messcast/public_html/includes/database.mysql.inc on line 172

How can I fix this?

I am trying to customise the Search. or tripsearch AKA SQL Search .modules that users can select the area of teh search from a drop down list e.g. search in forums, search in blogs, search in profiles etc.

I am trying to filter my view by a computed field. My main issue is that the computed field only offers these operators:

• Is Greater Than
• Is Greater Than Or Equals
• Is Equal To
• Is Not Equal To
• Is Less Than Or Equals
• Is Less Than

and then a text field. I am looking to make the text field a drop down. I have been able to do this by creating a block using the following code and displaying on the corresponding view:

<form id="views-filters-block" method="get" action="http://localhost/acedesigns.com/capablitites/framing/mouldings/blacks">
<div class="form-item-0">
 <select id="edit-filter0" class="form-select" name="filter0"><option value="**ALL**">-all-</option><option value="black">black</option><option value="silver">silver</option><option value="gold">gold</option><option value="brown">brown</option><option value="white">white</option><option value="other">other</option></select>
</div>
<div class="form-item1">
 <select id="edit-filter0" class="form-select" name="filter1"><option value="**ALL**">-all-</option><option value="yes">yes</option><option value="no">no</option><option value="maybe">maybe</option></select>
</div>
<div class="form-submit">
<input type="submit" class="form-submit" value="Submit" id="edit-submit"/>
</div></form>

I then hide the regular filter created by the view with: