Operation Flashpoint 1.20 patch problem,please help

[theacrobat]

Re Oper Flash V1.20 official patch.
I did the following but when I execute dumper and try to open the upgrade patch there is some hard disk activity but my machine then always locks up. Any tips. Is it my copy of unsafedisc. I have DL the patch twice and same result.

Create the following directory:
TempDir: C:\TEMP\UPDATE
Check that at least 160 MB diskspace is available!
Extract the official Operation Flashpoint v1.20 Patch to the TempDir.
Extract the unSafeDisc v2.40.10 archive to the TempDir.
Execute Safedisc_v2_40_10_Dumper.EXE, select OFPPatch_Upgrade_1_20.exe [54,661,026 bytes] and click Open.

Does anyone have copies of unsafedisc, and patch files that work with the official V1.20 patch. Can anyone sey out procedure in more detail so i can understnd it clearly. Thanks in advance.