hmm.. im not sure on that song.. i watchd the 1st episode b4 tho!.. love it!..
dunno if ud be bothered tho.. but they had some songs on the last edisode of the 1st series by a band called Nouvelle Vague.. ther really good and worth checkin out!
It's irritated me also. I eventually found out what it was. Search 'west one music'. It's called Pole Position, by Paul Borg. I'm pretty sure thats it, just you cant download it! You have to register with them or something.