I forgot to ask,how/where does she get the biometric immigration document,
what is that ? finger prints and whatever I presume,where would she go to do/get that done.?

Also which form does she need to download/print out to apply for a visa extension,.i have looked at the website in the above link but I cant see which form it is.

Set(M) she uses to apply for ILR 37 pages..and FLR(M) for visa extension 52 pages ?

Does she apply for visa extension 28 days b4 her 2 years is up or b4 her visa runs out? sorry for all the questions.