Anything helps, really. I took a look at slowhand's tut but it really doesn't get too deep into mapping. I already know my way around C more or less, so the scripting part shouldn't be too much trouble. I need a list of keybindings, really - more than what's included in the SDK's readme. I'm using the reloaded SDK.
I also don't get the info about tile layers in the top right. It's always at layer 0 and I can't change it and I think that's what's giving me trouble. Sometimes I can't select floor tiles, even if the select floor tiles button is on. Sometimes when I set the floors down after mapping the walls, the floor tiles appear in front of the walls instead of behind, and I can't select them and delete, I can only select the walls.
Thanks in advance for any help, guys.