I just downloaded my file, burnt a new CD and successfully booted both a 1.5GHz G4 Aluminum and a 500 MHz Pismo. So either you didn't burn the CD correctly or you have hardware problems.
Are you sure you have a Pismo not a Lombard? They look the same but the Lombard has USB and SCSI while the Pismo has USB and Firewire. If they haven't been modified the Lombard say "Apple Powerbook G3" below the display while the Pismo just says "Powerbook".
To burn a Tiger CD.
Download to an OSX machine.
Decompress with OSX unzip (just double click unless you have changed the default application for ".zip" files).
DO NOT mount or double click the resultant .toast file.
Open Toast, drag the .toast file into the Toast window and hit the burn button.
Toast will automatically do an image burn.
Recently, more and more Mac OS X apps have been uploaded. I suggest introducing an upload entry separate from classic entries since it is enervating if you search the ABC... entries an find so many Mac OS X apps instead of classic apps.
Mac OS X is Unix/BSD and not Mac OS.
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