Hey, thanks for the welcome and the quick reply!
So we're using the modem (Technicolor cga0101) provided by our isp solely for our internet connection through both wifi and ethernet. I opened the modem earlier to see what kind of bios chip it has since I have an eeprom sop8 programmer that I've used for pc graphic card bios flashing gone wrong. Thought I could try flashing openwrt firmware on the modem and just revert if it didn't work but this bios chip is massive....its an soic 16 chip which is twice the size of the chips I'm used to seeing. And not finding a lot of info on the net regarding this modem either.
What I think you're saying is that all devices would need to connect through the pc in order to get internet access. So would I need a wireless access point hooked up to the pc??
Thing is that I don't have the pc on all the time and would rather not. So it's probably better just buying a compatible OpenWrt router isn't it?