In reply to lucyconfused:
Your post says they are offering you some weeks off to look for a job.
1). This is not redundancy as the job, I assume will still exist, and there are statutory redundancy payments which only amount to 3 weeks payment in your case.
2). It doesn't sound like you are being dismissed either, as I would have have expected them to say you are being dismissed at the end of the 2 or 3 weeks.
3). As others have said, they may well be offering you a paid leave of absence because they want to improve your chances of going!! (They want you to go)' or they may well be making a genuine guesture of assistance- it does happen!! Either way, this should be in addition to any paid leave you have outstanding so check this out!