Hi Manci, Thanks for your kind reply. please link below ..
http://www.ukba.homeoffice.gov.uk/visas ... /applying/
and this paragraph on this page is very confusing .
during your most recent period of permission to stay, or period of continuous permission to stay that includes your most recent permission to stay - this must have included permission for you to study for the qualification.
Based on her one degree already completed here successfully , she can switch on Tier-2 isnt it? although she is on a Tier 4 now for a different course which hasnt been completed.
Thanks in advance