what a very complicated case fred, so much have been change for 14 years as far as the immigration ruling is concerned , am afraid she will have to take ang passed the English test , and apply for settlement spouse visa via the ILE (Indefinite Leave to Enter) route and endorsement.
she also needs the LIfe in the UK test certificate for the ILE but she can choose to travel or visit to uk to take the LITUK test or if she satisfies all the requirements for ILE (except the LITUK test) she will be granted 27 months leave to enter and take and passed the LITUK and then apply in the UK for ILR.
Joebloggs will be more expert in explaining everything regarding this matter.