Has any one been able to login to the site with the password and
username supplied?

I got this email from the Mandriva team

Hi

You bought some time ago a previous version of Mandriva Flash. Mandriva
offers you now to update it with brand new version of andriva Flash,
based on Mandriva Linux 2008.

This last version includes new functionnality: ezBoot which will allows
you to launch in a very easy way your favourite distribution. It will
also provide you a way to use you mobile desktop and the best of Open
Source softwares both on Windows and Linux platforms.

It's very easy to get this update. Download DVD iso using following
information:

ftp server : ftp.ext.mandriva.com
login : updateflash