New pod hd500 problem

Hey, I'm new to the board but I have a question I hope someone can help me...
I have a dual rectifier and just bought a pod hd500 pedal thinking I could use the modern and
Vintage channels on my head, anyways I use the 4 cable method through the effects loop in the back of
The amp. When the pod is hooked up I only get one tone in every channel some are a little louder but that's it.... I want to be able to have my dual rec modern raw and vintage but then switch to the pod for other stuff in my songs there has to be a way??? Is there?

I have never used the 4cm with my POD, but it sounds like your pod is bypassing the pre-amp on your dual rectifier and substituting a modeled amp instead. I am not sure how to do it from the front panel, but with the HD edit software, simply turn the amp off (yellow button next to where it says AMP A).

Hahaha I got it figured out ... I never had the FX loop active in the fx chain on the pod the answer was right in front of me thank you for the help!!

How does it sound now. Looking at getting a multi unit.

It sounds great!! Although I find myself bypassing my recto's preamp and hooking the pod up straight to the fx loop return and using the amp modelling.