I assume you want to transfer VCR to DVD and not the other way around.
Proided you have a reasonable spec computer, why noy buy a PCTV card, and copy to your computer, edit and then burn to DVD.
A reasonable card will cost you about £50.
You will need a DVD Editing/burning program (e.g. Pinnacle )
and a co-ax cable from your VCR to the computer.
If this is OK for you you need to do the following:
After connecting the PCTV card into the computer and loading the software.
Connect the cable to the computer.
Set VCR to AV mode
On your software select autotune (Channel finder).
It will find your recorder and all you have to do then is set the record on your computer and press play on the VCR.
You can then edit out any thing you do ot want (i.e. Adverts)before burning to DVD.
A very good editing software package is VideoReDo.
This set up has the advantage, that you can add a freeview box, and record freeview to DVD by the same method.
If you still want to stick to your original plan, have a look at these sites.