Routing, VRF help

Can anybody tell me how to achieve this.

3 sites with Routerboards.
A management network is available between them.
Need two separate networks routed over this management network.
The all Admin networks should reach each other, and all Open networks should reach each other, bot no communication between Admin, Open and Management.

Site A
VLAN 500 Managmenet 10.10.1.11/25
VLAN100 Admin 10.1.0.1/24 Tag ETH3
Gateway 10.1.0.2
VLAN200 Open 192.168.11.1/24 Tag ETH4
Gateway 192.168.11.3

Site B
VLAN 500 Managmenet 10.10.1.12/25
VLAN100 Admin 10.1.1.1/24 Tag ETH3
VLAN200 Open 192.168.12.1/24 Untag ETH4

Site C
VLAN 500 Managmenet 10.10.1.11/25
VLAN100 Admin 10.1.2.1/24 Tag ETH3
VLAN200 Open 192.168.13.1/24 Tag ETH4

You’ll need to setup MPLS between the three routers so that they can pass VRF routing information between each other.

Take a look at this wiki article for an example. It may need to be adapted slightly but everything is there.

http://wiki.mikrotik.com/wiki/Manual:Layer-3_MPLS_VPN_example