wordpress 3.0 upgrade

I would like to upgrade the following site to the latest version of wordpress. [login to view URL] there is quite a bit of custom coding done on the site and I would like to be very careful to keep all the functionality intact. I will give you the details on what needs to be preserved. Please let me know your quote for this job. Thank you. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform wordpress built in a LAMP environment.