Can PPTP bridge two networks?

I'm not using the right terminology, I'm sure.

I have setup a PPTP Server, and PPTP client, on Tomato-based routers.

When I establish a connection on the client, the PC's behind the client can see/access all the PC's behind the server router.

I'd also like the PC's behind the server router to be able to access the PC's behind the client router.

Can I do that somehow in the PPTP Server or client setup?

BTW, two different subnets, the server is 192.168.10.0 and 192.168.20.0.