hey man..
floyd rose bridge can really be a headache man...
one of my frens actually screwed the bridge to the body of the guitar.. well its a hardcore way of doin it lar..
but theres alot methods u can try to block a floyd rose bridge... by fixing springs behind is as a standard bridge. this is not done easily though... but they are some usefull websites tht shows u how..
these are the links tht i found.. try to research more u can find more links on usefull modification for ur bridge. ::::>

http://users.pandora.be/marnix.ghesquiere/...ockingtrem.html

http://pierreott.tripod.com/blocking.html

take care
regards.

yea just block it to be on the safe side.
cheers mate