Thanks very much sush.
I just realised that I pasted wrong links yesterday (transitional).
I meant to say,
Not listed:
http://www.ukba.homeoffice.gov.uk/worki ... switching/
Listed:
http://www.ukba.homeoffice.gov.uk/polic ... es/part6a/ - this is what you mentioned to 245ZF(e)
I called UKBA today and the person was confident that I should be eligible, but couldn't explain why it is not listed in the first link.
With a bit of further investigation, I just found out that I would have got the work permit under "Business and Commercial work permit arrangements - non multiple entry". This category is listed in the first link, but I didn't realise what my old work permit is called.
This is now closed for non-EEA:
http://www.ukba.homeoffice.gov.uk/worki ... rkpermits/
also looking at type of work permit in here:
http://www.progressgb.plymouthmind.org. ... ermit.html
Thanks very much for your time folks. Now I see what Arsenal meant yesterday - structuring question correctly. I wrongly assumed that business and commercial work permit is something that wouldn't have applied to research institutes.
Cheers.