Module development and code questions

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:

I'm having problems trying to get the search module to work on my site. When I search for something the page comes up blank. I noticed that since I have clean urls enabled when you input a keyword, the keyword is not added to the end of the path url.

The website is supplychain.com

Any help is appreciated in fixing this.

Thanks

after downloding form module.I enabled it into my addmin module.
But how I use it into my site.