@Tempest: The inn is located at the southern exit of the village. Head to the counter to make a previously unseen NPC appear in the room, and select "No" when being asked about staying at the inn. You can then challenge this person to a card game to win the Kiros card.
As for Irvine's Ultimate Weapon, I have checked it myself and had no problems getting it. Are you sure you have all the required items? In the mod, it's Dino Bone x2, Shaman Stone x1, Star Fragment x2 and Screw x18.
Ah so the materials are different. I assumed it was a Moon Stone instead of a Shaman Stone, i've used Irvine quite a bit in other versions.
I think i may have screwed up the quest i gave Minimog to the QOC in Balamb not realizing about the changes. she then moved to Dollet, i went back there and gave her Quezacotll. I have since checked the place in Winhill and no NPC is appearing there. The Kiros Card has been changed right because i would imagine that 3 Auto-Hastes would be too big too pass up on before travelling to Esthar in Lionheart mode. Thanks for the info !