need help for citizenship

[/size] eea exercising treaty right as student and got registration certificate from 2005 . i wana apply for citizenship .any one clarify for me
I know homeoffice waived CSI for pr (endex b) .is this apply when u for citizenship too? .bocs i have no CSI since i was student .i finish 5 auto +1 .passed life test my friend say they refuse bcos only apply when u apply for pr .every thing ok apart from CSI. I dont want apply for pr then wait 1 y .any help . when i applied in 2005 as student they never ask me for CSI and issued me with blue card no expairy on it . thanks in advance[/b]