How to open a dome with a keypad lock. I know the code but can't input the digits

Well, self explanatory really. I start back in my room after doing anything, and I am clicking on SAVED GAME. Any help you guys can give me?

Now that I've found all the tarot cards, there is one thing left that bothers me. When you sneak around the giant eye in the big gray and purple colored chamber and let yourself fall into the pit under it, you will be suspended inside a purplish vortex. If you stop moving while suspended, the screen will change to a black and white view of different eyes moving around inside the tunnels - moving the mouse while standing still lets you change viewpoints. I saw a lot of familiar views of eyes I re...

It'd be neat if someone could make a guide for the tarot cards. The cave section is particularly tricky for me; albeit I'm only missing a few. The one that's in the caves in the midst of eyes (NOT the one that's under the huge eye, I got that one) seems to be particularly difficult for me to get. I find an area that's full of eyes in the caves but one seems to be alive and always notices me. Is that particular card in this area at all, or somewhere else in the cave?...

Yep, completed the game, got all other cards and never been to this room with the padlock number writen on the wall/floor.