PfSense on PROXMOX with VLANs?

I have posted this on Pfsense forums as well but I guess someone in here might be able to help as I am very new to this! :/

I have proxmox server on a DC with a /28 subnet.

One of the IPs of the subnet is assigned on a Proxmox bridge (vmbr1) and works ok.
On proxmox I also have the following bridge (with no IP):

--
auto vmbr3
iface vmbr3 inet manual
bridge_ports none
bridge_stp off
bridge_fd 0
--

The proxmox kvm has 2 virtual NICs, one connected to vmbr1 (as WAN) and the other to vmbr3 (as LAN, 192.168.0.1)

If I create another KVM, and connect it to vmbr3 then I have a happily working KVM behind the Pfsense.

What I want to achieve however (and I can't!) is to create VLANs behind Pfsense.
My problem is not creating the VLANs inside Pfsense but on how to connect the different kvms on those VLANs!

I have followed this tutorial up to the point that the author makes changes on the switch :
http://www.youtube.com/watch?v=-Nf_XsmMmWo

Pfsense shows WAN, LAN, VLAN1 and VLAN2.
The mystery is how to attach KVMs on VLAN1 & VLAN2!!!


I am assuming here that something needs to be done on the proxmox network and can't figure what (and possibly how) as I exhausted my knowledge!

Can someone please heeeeelp?


Nikole