Upgrading WRT54G Firmware (Flashing WRT54G) to DD-WRT

I have been looking around trying to find a way to enable VPN passthrough with my WRT54G and also have the ability to telnet into it. With the standard firmware, you are unable to do so. The only option I found was to flash, or change, the firmware. Here is my router version: WRT54G v5. For the most part, even if you have an earlier or later version, the steps should be similar. However, it's best to check to make sure the firmware is compatible. These are the steps I took to successfully flash my router firmware. COMING SOON!