The Drunken Lizard Pub

I cant get behind the gate behind saint gilhelm in port kuudad.

To get through this gate, you need to show Saint Gilhelm the book:
Orakur: of Fact of Fiction.

This book can be received for completing the bronze quest in the region east of Eastwillow. If you sold or destroyed the book, it can be re-obtained by reseting the map file in your Eschalon: Book II folder. I don't know which map fil;e this is though, perhaps someone else can help you there. Just be sure that if you delete the map file, you are not standing in that region when you reload.