So Using both xsenman and RuffBuster suggestions I was able to get the card mounted.
Its quite simple once you get it.
1. Format an SD card (Post Suggests 16 gb, but I used a 4) using MiniTool Partition.
2.The First Partition is Primary 2gb ext4.
3. The Second is a Primary Fat32 with the rest of the space.
4. Download the Rom Provided here. http://www.htcmania.com/showthread.php?t=520348
but since its in spanish, all you really need is http://www.mediafire.com/?mb5m89qwy6ma46y
<-- From what I understood its a special rom that enables the use of the ext4 and fat32??
5.In odin put the corresponding files in each field.
I left the pit out because it just bricked my phone.
6. After its flashed the files, the phone should reboot into recovery and if all went well it will write the roms onto the external SD and you should have a working phone