Please help me. What do I need and how ipxe amount on a NAS DS212J?

[chilpandolfo20]

I'm new to this and which do not understand almost nothing, so I turn to you to help me to implement a nas iPXE DS212J with DSM 4.2-3211.
I have read and seen several topics on the forum to try to understand but the truth is that I so dizzy info.

The intention of this is to make any network installations. Iso of the OS XP, 7.8, and images Distro linux OS installed with the ATIH 2012.

I tried to PXE, but did not know how to compile the default file pxeconfig.0.

I see iPXE is better, faster and without much roll.

Thank you.