How Can I Anonymize a Timeslips Database?

SUGGESTED

I am an attorney with a client that keeps its billing data in Timeslips.  The client is involved in litigation, and the billing data in the Timeslips database is an issue in the case.

We would like to give the other side the entire Timeslips database and let them use their own version of Timeslips to create reports and manipulate the data as they see fit.  However, we want to keep the names in the database (my client's clients) confidential.  

Is there some way we can remove the names from the database?  The way my own personal Timeslips is set up Nickname 2 is a number, so I suppose if there was a way to erase nickname 1 from the file given to the other side that would work, although I don't  know if that nickname setup is standard.