hi
bit of a crap picture, but you can connect like this for the basic stb - vhs - TV setup
http://www.cableforum.co.uk/board/at...4&d=1129407405
then the DVD could either use the second scart on the vhs/dvd recorder to scart 2 on the Tv - or use any S-video or component connections, available.
Best you look in your manual for tuning in the recorder, most have an 'auto' function, that will do it for you, but bear in mind that unless you have an external aerial, or a bypass unit fitted, trying to tune in the signal from the stb will only find one channel.
<edit> to acknowledge Robs post - I think we are saying basically the same thing, just I type slower