Yes, the previous posts are correct. The configs and documentation are all the same US to UK, the only difference is in how you setup the dial strings (basically phone numbers). Wait, I just noticed something...
Shouldn't there be under the interface BRI0 statements about the spids? Such as:
isdn spid1 xxxxxxxxx
isdn spid2 xxxxxxxxx
To add to what trismegistus said about filtering, make sure you use access-lists to filter out any uninteresting traffic (broadcasts, etc.) The boss will not be happy when a 1000 quid telco bill shows up.