It should. Are there lights on your DDWRT modem that indicate the WAN is getting a signal?
Also try plugging your PC into the end of the powerline adapter that you connected to the DDWRT (instead of plugging it into the DDWRT). If the PC indicates connectivity then something is wrong with your DDWRT settings.
Yes, WAN light was on. The only other thing maybe i can think of just now is that it needs to be on the same ip range as the Bell router? When i reset the ddwrt ti gets the default 192.168.1.1 but the bell router is on 192.168.2.1 and gives out ip's from 192.168.2.10 to 192.168.2.254
Not sure if that matters
EDIT: other than what i mentionned above, do i need to change anything in the sagemcom side of things? I notice that under network option int he sagemcom it's under VLAN, should that be changed to PPPOE or does not matter for what i am trying to accomplish?
I really hope to get this to work today and be done with! lol