You'll need some extra hardware (which will come supplied with the necessary software). The cheapest option might be a PCI card but that means opening up your computer to install it. (That's probably not the best route for a 'technophobe'!).
A USB device is far easier to use. I can personally recommend this:
http://www.maplin.co....-audio-grabber-340918
(I've got one of those plugged into the PC which I'm using to type this reply on)
Then you need to be able to play your tapes. If you've not still got a VHS recorder, the British Heart Foundation is the best source of (tested and warrantied) secondhand ones. Search for 'Furniture & Electrical Stores' here:
http://www.bhf.org.uk...-are/the-bhf-map.aspx
The only other thing which you'll need is a Scart-to-phono lead, to connect the output from your VHS recorder to the USB device. Some places charge ridiculous amounts of money for them. (e.g. the cheapest one I could find in Curry's was £19.99). However 'pound shops' and 'discount stores' can often sell you one far cheaper. This is the type of lead you require:
http://direct.tesco.c...&utm_content=208-6604
Chris