my Synchronization Scenario

Hi, I want to know the a solution for my Synchronization Scenario

I have a several client databses which are SQL Server 2005 Express and i have a master database which is SQL Server 2000 containing all the individual Client databases. All the individual client databases are kept seperately at the master location. I need to Synchronization the client database with its copy at the master database (something like Merge replication). Both the Client Copy as well as Master Copy could be Publishers & Subscribers.

Now the problem is Because of security & firewall issues, only the Client should have the ability to schedule & initiate the synchronization process with the master copy. Unfortunately SQL Server 2005 Express has only subscriber agent and not a publisher agent.

Any help on how to achieve this would be appreciated . Thank Youno idea, but you implimented BETA technology. Any chance you can get everything on MSDE?