WRT54G Ver 1.1 Firmware Upgrade

I was experiencing some connection problems that were causing me to cycle the power on my router a few times a week. I decided to upgrade the firmware to 4.21.1 hoping to resolve this issue. The firmware upgrade completed and all configuration settings were put back as I had before the upgrade.
Since the update, I cannot connect to the internet through my DSL when connecting through the router. I can connect to the internet when my computer is directly connected to the modem. I called Linksys and I was told to reset the router three times. Had no results.
Can anyone help me out with this? Or is there a place where I can download the old firmware that I originally had?
I have a WRT54G ver 1.1 and Bellsouth DSL
Thanks
(Edited post for guideline compliance. Thanks!)
Message Edited by JOHNDOE_06 on 11-20-2007 08:55 AM

--Update--
I solved the problem. The Bellsouth DSL modem is in bridge mode after it is either reset (hard button) or configured via the web utility.
WITHOUT connecting the router to the modem, configure the router to be PPPoE insted of DHCP. If the router is connected to the modem while still in DHCP mode, the modem will assume the router is a computer. This will kick the modem out of bridge mode.
So the steps to solve the problem are:
1) Disconnect ethernet between router and modem.
2) Reset modem / put in bridge mode.
3) Connect to router via web utility and configure PPPoE settings.
4) Connect router and DSL modem via ethernet cable.
(Mod Note: Edited due to non-compliance of forum guidelines.)
Message Edited by OnnagokorO on 11-20-2007 06:50 PM

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