I am finding it very hard to remember where I found all of the gold keys. It is quite frustrating as I have managed to get them all and now managed to completed the entire game with all of the secrets thanks to your help, but feel really stupid as I have found all of the gold keys but can only remember the one I got from the basement secret pipe.

I'll have to play it from scratch in order to get back to you. LOL

Thanks again!

LifeHacker