Can't boot into my Bootcamp partition

so making small 2gb partition share files between osx lion , windows 7 partitions.
after did that, transferred files on partition, tried booting windows.
so, normal hold alt when turn on, , see osx lion startup , osx recovery option. windows missing

go osx figure out what's wrong, under startup disks still has option boot bootcamp , when restart into.. option restarts , sits on blank white screen.

can still see bootcamp partition in finder, files still there.
thinking if reverse did work, deleted ~2gb partition , extended mac osx partition fill empty space. still no windows, can help?
i'm running lion.

 

can please help?
need figured out!

 

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