If you check-in the traditional way, that is with no online, car etc., you go to the upper class check-in desks at the extreme right of the check-in area A as you face it. During check-in they should give the invite to the CH.
You then make your way up the escalator opposite the check-in desks to the departure level. Turn 180 degrees when you rech the first floor and walk along until you reach world news (I think), go right here - it's obvious;) You then walk past main security and continue to fast-track which is on the left as well. Hand over your boarding passes (and passport?) here and then queue - hopefully not too long;).
Once through security you need to go left and then right again for passport control - this shouldn't take too long however.
After passport control, you can browse in the duty-free area which is rather large but if you don't want to do this you can head straight to the CH. Follow the wooden walkway round to the right. You will then come to an ascending ramp on the left just after Paul Smith;) Go up this and turn right. Follow the corridor and soon on your left will be several airline lounges. Go up the stairs and you will be met by a VS person who will ckeck your boarding passes. If you need any assistance ask at reception in the CH for finding your gate etc.
When arriving at LHR, if you park in one of the long-stay car parks,you can catch a bus which will take you directly to the terminal (3). The VS check-in is section A at the left as you face the terminal. Enter the terminal as close to the left as you can. You will have to walk along a bit and then turn left. The UC check-in desks will be the first ones you encounter.
Hope this helps.
