I'm not familiar with the particular cards but DABS.com (http://tinyurl.com/2zmae) has the following to say about it
"WinTV-GO is a low cost WinTV PCI card that brings TV and the functions of professional Teletext, which include DDE (Dynamic Data Exchange) that allows you to update information via Teletext into spreadsheets, frame and AVI video capture to your PC.
The Go is ideal for capturing your favorite clips via the composite video in, also connect your Playstayion, VCR, DVD and Cam-Corder. Videoconference over the Internet using NetMeeting that enables you to communicate with friends or colleagues (requires optional camera)."
so i guess the answer is "Yes, you can use this card for analogue video capture"
As for software. If you use Windows XP (and you p[robably should for video editting) then you should already have Windows Movie Make 2. It will do the job fine.
I would suggest you read Mark's guides on the subject. You might want to start at http://www.marcpeters.co.uk/budget-editing.html to start with.