First of all trash your preferences.
http://www.fcpbook.com/Misc1.html
Do not go switching randomly between settings for capture. There is only one correct setting for your media and your camera. I don't know what settings are on your media, but it's going to need to use some setting of DV PAL, either 48K or 32K, either anamorphic or not.
What other devices are connected to the computer? Is the camera turned on in VCR before the application is launched? If yes, when the application is launched, does it recognize the camera? If not, do not proceed further. Check system profiler to se if it recognizes the camera. Check the cable.