You can search this forum, and a google of "Floyd Rose bridge shims" turned up a few things. It's "normal" to put three 2mm shims under the outer strings, and one 2mm shim under the A and B strings to flatten it out to the 19" or so that is needed at the bridge. It's easy to find 2mm brass sheet, too... + kitchen scissors, there you go. :hello2:
(how-to): http://www.rackcreations.com/forum/viewtopic.php?p=130
http://www.axcessories.com/products.asp?cat=116
http://www.guitarpartsresource.com/guitar_frsaddles.htm