Hi Sam, im sorry for not providing good install instructions so here...

Step 1) Insert clean floppy and format to FAT12.

Step 2) Double left click the 'compile.bat' file. (This compiles the asm files.)

Step 3) Double left click the 'mkfloppy.bat' file. (This writes the data to disk.)

Step 4) Adjust you BIOS to look in floppy drive first for bootsector.

Step 5) Restart your pc and it you should be in my os.

To exit my os simply remove the floppy and type 'exit' into the command console.
(This causes re-boot, and since no bootsector is found in floppy, your os gets it)

As for doing any work on the code, the answer is no.
I no longer use nasm compiler since switching to fasm compiler.
Sometime in the future i will port the code syntax and go from there.