[SOLVED]Help getting me started with pfsense port forwarding without bridge mode

[mechpanos]

Hi all! I am new to pfsense, using it for just one day, and reading documentation.
My problem has to do with something I read is not the right way to do, yet is convenient for configuration and usability purposes.
I am using a dual wan setup, using 2 adsl routers and load balancing them.
The routers were not set in bridged mode, just changed their ip range (from 192.168.1.x, to 192.168.0.x), so now I have:

Router 1 (WAN1) 192.168.0.1                  Router 2 (WAN2) 192.168.0.2
pfsence NIC (WAN1) 192.168.0.3 [dhcp]    pfsense NIC 2 (WAN2) 192.168.0.6 [dhcp]

pfsense (192.168.1.1)

LAN (192.168.1.x)

For the record, I used to utilize only WAN2, WAN1 is my new adsl connection and thats why I looked for pfsense in the first place, to make the dual wan setup.
I was forwarding incoming connections to http://my.public.ip:50, to internal address 192.168.1.50:80, with the routers NAT functionality.
When I set up pfsense in the middle, that stopped working.
I turned off the router's firewall (besides, I have pfsense) and set up the same rules in pfsense, still not working.
I am using my mobile phone in 3g to test the results.

Any help, on how to do this without having to set my modem/routers to bridged mode?
Should I keep the modem/routers firewall up, and NAT http://my.public.ip:50 to pfsense's WAN2 address, so pfsense takes the packets and forwards it to the desired destination?

UPDATE: Well, just writing down what the problem was about, shed light to the situation and I solved it:
I set a rule forwarding all ports of modem/routers incoming connections, to all ports of pfsense WAN2 address, and from there on, pfsense manages the rest!
It worked fine! Should I have any security concerns, leaving the wan2 ports open?