Linksys WRT54G router connected with RJ11 cable

I want to buy Linksys WRT54G router
http://img97.imageshack.us/img97/6262/wrt54g.gif
that used to be connected via cable which had a RJ45 connection.
http://img202.imageshack.us/img202/1...wrt54gback.jpg
I now have ADSL which only has a RJ11 cable connection.
Is there any way to modify RJ11 cable to be connected with RJ54 cable ?
I mean Will the RJ11 socket plug into the RJ45 socket of the router and will it work?

No, 1 needs a modem(RJ 45-cable) the other needs a adsl connector/filter/phoneline(rj-11). You will need a new router I'm afraid

Yes you are right.
Thanks.