some guess work here due to lack of info on vcam type
if u're vcam is a miniDV, have to connect via firewire 400 cable, not USB
http://h71036.www7.hp.com/hho/cache/315100-0-0-225-121.html
or video format is not supported by wmmaker (mpeg2, 4) usually from hdd or flash mem vcams
- convert first to avi or wmv ... try Prism, Super or Kate's free converters