Ive never heard of this "iscript and i need to know where i can find this seriously i have no idea

iscript.bin is a file in stardat.mpq which controls unit animation. it can be edited with IceCC by Shadow Flare.

where can i download this?

ever heard of google? O.o
anyways, it's somewhere here: http://shadowflare.samods.org/dwnload.html

it wasnt there so ill look on goole...

yes, it is there...
press ctrl + f, type in "IceCC".

http://shadowflare.samods.org/cgi-bin/download.cgi?icecc-1.3-win32.zip for windows version, or http://shadowflare.samods.org/cgi-bin/download.cgi?icecc-1.3-macosx.zip for mac osx version.

How do i use it? i got the download and i have it... but how do iuse it same with firegraft which i need to redownload where can i find that?

As you know, ICECC is used to edit file iscript.bin. If you've made already some Firegrafting, then you have to put changed file (iscript) to mpq archive of your mod (IMPORTANT, file with your FG mod is also mpq archive, even if it has .exe and you can open it in WinMPQ). Once opened. put your iscript.bin in scripts\ directory. Running now your modfile will contain all changes made in iscript.bin (or any other file - *.dat, *.tbl, *.grp and so on). How to use ICECC you may read attached to its ZIP archive .pdf manual (altough there are some errors in animation-list description, all other should be fine).