Hello! I've just joined as it looks like you are a friendly lot from reading the posts linked to from the NHS Couch to 5k website.
I'm slightly scared by the 3 minutes tomorrow, since I did walk for a part of W2R3 where my route goes uphill round a corner. It was admittedly for about 10 seconds at the end of the 5th run, but it still feels a bit like cheating to go into W3 - it's not even very hilly around here! I've worked out that my route is slightly easier going the other way round, so I shall do that and I am running at about 7.30am so at least it won't be hot.