hi dance, welcome to the forum !
are you sure you got the proper version for your cam ? read the FAQ
FAQ - CHDK Wiki to
find out how. if you've got the proper version, the following should happen when you use the
'firmware upgrade' option with the right version of CHDK:
1) CHDK logo should appear on screen for 1 - 2 sec
2) a couple of new indicators should be visible on screen
- now when you press the 'Shortcut' button <Alt> should appear bottom center of screen.
- with <Alt> on screen, press 'Menu' to get CHDK's main menu.
- to leave the CHDK menu press 'Shortcut' again
hope that helps,
wim