There is a way to extract files from fs
Download this programs:
http://rapidshare.com/files/22408029/GExtract.exe.html
http://rapidshare.com/files/22408131/SEFStool4.exe.html
Next, open with GExtract fs firmware file and click process, later open cmd line and write SEFStool4 *.raw (* - enter created raw filename). SEFStool will extract filesystem from raw.