Instructions have been posted a million times but.....
Firstly I would recommend downloading Safedisk Analyser (see link at top of page). This will let you know what version of Safedisk is being used so you can use the correct version of Unsafedisk/Unsafeshit. You can get Unsafeshit 2.51
here
1) Copy all dll's and the main exe (the protected exe) into a temp directory on your hard drive
2) Run Safedisk Dumper on the exe - this creates a data.bin file
3) Run Safedisk Rebuilder on the data.bin file - this creates your new fixed exe
4) Rename the fixed exe to the correct name the original one had (you will have to delete or rename the original in order to rename the fixed exe)
5) To burn to a CD - copy contents of the cd to a temp directory, replace the original exe with the fixed exe (or create a directory called crack) then burn back to CD-R with the
same cd-label as the original.