Dial up their ATIS 124.325 on you way up, before you call them on APP.
It will give you all the pressure settings, wind, runway in use, etc. plus a code letter, so when you call 'em for the first time you can say "...with Information Charlie (or Delta or Fox, or wotever...) and you'll have it all written down.
Make sure to call APP say at 10 mins to run before you get to Oulton Park. If they say "Standby" then don't enter the zone, wait till they call you back.
Oh and it's worth phoning them afore ye set off. They will then have your details. tell 'em you're relatively inexperienced and not familiar with the zone and you should be treated well.
There's a great info pack on the Liverpool/Manchester low level area at
http://www.caa.co.uk/dap/dapcharts/o...sp?groupid=302
which tells you all the major VRPs & the lay of the land.