I have run across a few websites (one's my bank) that ONLY work under Internet Explorer. I know of a workaround for Intel Apple machines, but I have a G4 PPC iBook. None of the Mac browsers I know of will work (Safari, Firefox, Opera, or Camino) for these websites. Any suggestions will be most welcome. Thanks.
You have a few options. Get a user agent switcher for Firefox and try that.
If that doesn't work you could try Opera
It sometimes works on IE only sites. If you had an Intel based mac there would be a few more options.