For Cupid04:
Your VHS recorder can either record from its own internal tuner or from an external source (by setting it to record from 'Ext', 'Aux', 'AV', or whatever other label the manufacturer chose, rather than from a numbered channel).
The internal tuner is only analogue so you'll no longer be able to record by choosing 'Channel 1', 'Channel 2', etc after the digital switchover.
Theoretically you will still be able to feed the output signal from a set-top Freeview box to the socket on your VCR which accepts an external signal, but it can be rather fiddly. You'd need to select the channel to be recorded on the Freeview box, leaving the VCR to record 'AV'. Unless you'd got two set-to boxes (or a single set-top box and a TV with built-in Freeview) you'd only be able to record the programme you were watching. (i.e. you couldn't record one channel while watching another). Getting the cables sorted out properly can be rather awkward as well!
In practice you'll probably find that you need to buy a modern (digital) recording device, such as a PVR. However your old VCR will still play your existing recordings (or the VHS tapes which charity shops sell for about 20p each these days - I can't stop buying them!).
Chris