You can press the reset button on the back for 5 sec... and start fresh or go to airport Utility and select the TimeCapsule drive and click erase.
All of this is in the manual. That little things that came with it... give it a shot!
It even says you should do your FIRST backup over wired...
To copy CHANGED FILES only... simply use RSync
You can ready all about it for the mac... there is a nice app called RSyncX which will do you nicely.
Or.. make life easier with any of the other free backup tools! Or pay for SuperDuper which is the BEST.
ok.. let me try this AGAIN!!! (All from memory now)
1) The "link" does not work.. tries to open up the path to my documents folder.
2) The music does NOT play.
3) The "now playing song x" shows but the title above is blank. is there supose to be something in that middle box?
4) time meter cuts...
You have a few issues;
1) No music plays
2) "site" link tries to take me to : file:///Macintosh%20HD/Users/{myusername}/Desktop/data/1.html
3) the time marker of 0:00 gets chopped off on the last zero.
4) Song Title does not appear in the box in the middle, but the "Song 3 is Playing" changes...