Right here you go mate, 1st off download this
http://jerrymannel.com/blog/2008/11/11/telnet-scripting-tool-aka-tst10exe/
You want the tst10.exe at the bottom of the page, once you have downloaded it create a new folder on your desktop and place the exe in there. Next step open notepad and paste the following
@Echo OFF
tst10.exe /r:script.txt
Now save this as telnet.bat and place it in the new folder you created as well.
No open notepad again and paste the following
EDIT
Just to make sure
192.168.1.254 23
wait "Login:"
SEND "admin\m"
WAIT "Password:"
SEND "YOU ROUTER PASSWORD HERE\m"
WAIT ">"
SEND "adsl info --stats\m"
WAIT ">"
WAIT ">"
All you have to do here is delete where it says YOU ROUTER PASSWORD HERE and put in your router password, dont delete any of the quotes though just the text i wrote in.
Now save this as script.txt and put it in the new folder and you should be good to go.
Just double click the telnet.bat file you created earlier, the adsl info should then come right up, if your screen just displays your username and password hit spacebar and the rest will pop up
Hope this helps any problems just let me know
EDIT
Before i forget, at the top of the script.txt above it has the ip address of the router mine is the default one as you can see if you have changed it for whatever reason make sure you change it on this script file as well