Install and Configure open Source bug tracking software

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
We are looking for a good open source or low cost PHP/MYSQL bug tracking software to be installed and configured. Somethign with a nice and easy to use gui would be preferable. The purpose is to help us track bugs and upgrade requests posted by customers for specific software projects. We are open. Thus far we found the following:

The software would need to allow us to assign team members and customers to projects.

We are open to others. Let us know what software you have worked with and any suggestion will be considered. We will only consider bidders who have worked with other bug tracking software.

FYI: We are currently using Kayako/Resolve for our Hosting customers.

Additional Project Description:
06/06/2012 at 1:16 EDT
Remove from the list as it doesn't have a web component for the client interface.
I am also considering

Again, still open to others.

06/06/2012 at 13:39 EDT
After further research although bugzilla has a big following, the interface seems clunky. So I am on the fence with using that. Here's a few otehrs that seemed to have positive reviews (with the first 2 peeking my interest):
JIRA - (since I do not need a lot of users, the cost is veru cheap... ie $10)

Skills required:
MySQL, PHP, Script Install
About the employer:
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