How to flash a ZIP file with Odin?
.zip files are generally flashable from recovery, Odin's .tars are indeed a completely different format.  If flashing a kernel you can convert them relatively easily (thought I won't get into it here) but it won't work for a whole ROM.  You'll need to find an Odin package.  XDA is your best bet, but see also: Where can I find stock or custom ROMs for my Android device?