ok so lets pick out the silly mistakes:
-make sure its not on the "slide to unlock" screen and that it is functioning
-make sure ur connected to wifi
-if there is more than 1 wifi connection make sure the computer and the phone are ton the same one
- if ur on firmware 1.0.0, 1.0.2 then the username is
root and pass is
dottie
- else the username is
root and pass is
alpine
if these dont work then there must be an issue wid ur network and i reccomend u use this to gain file access
http://code.google.com/p/t-pot/ --- pretty straight forward