ADSL & ADSL2 Routers - difference?

[#1]

currently I have an Linksys WAG54G ADSL for ADSL2 would I need to change my router to an ADSL2 box?    or can it be done with a firmware update?
Thanks.

[#2]

i belive it is an adsl2+ router, thoe keeping up with the latest firmware is allways the best thing to do

[#3]

What hardware version of WAG54G do you have ?, and what firmware revision is it running ?
I have had four different hardware versions of WAG54G with varying levels of capability !.
You might want to look at http://www.linksysbycisco.com/UK/en/support and enter your WAG54G hardware version, then check the firmware releases, and check the latest handbook pdf for your equipment's capability.