MySql connection error on win XP for script that works on Freebsd 5.3

I have just installed MySql on Win XP and am attempting to run a php script to create some databases. The script works fine on FreeBSD 5.3 running mysql-client-5.0.11 and mysql-server-5.0.11. MySQL has been installed on windows XP using a download of mysql-5.0.13-rc-win32.zip. Test.php reports php version 4.3.1.0 and is installed with ZendStudio which I am currently testing on win XP as I cannot yet get any version of Zend later than 3.x to run on FreeBSD. The username for mysql is 10 chars with a password of 8 chars and is able to login successfully from the command line. However when attempting to login via the script I get the following error: "Error while connecting to MySQL: Client does not support authentication protocol requested by server; consider upgrading MySQL client." I have searched the mysql website and located an article which shows reference to this error indicating that the client may need to be upgraded but as I am using the mysql-5.0.13-rc-win32.zip package I am cautious about assuming that that is the actual cause. I am curious whether it is something to do with the php version. Does anyone know how I can fix this? Please ask for additional information you think might be helpful Thanks in advance david -- 40 yrs navigating and computing in blue waters. English Owner & Captain of British Registered 60' bluewater Ketch S/V Taurus. Currently in San Diego, CA. Sailing bound for Europe via Panama Canal after completing engineroom refit.