You cannot "spawn" armor and items in game, certainly not from the ctrl+G menu, that takes programs outside of game to create armor, weapons, accessories, and other items as far as I know need to be placed in Gshop or you need to have one already to copy them. Depends on the item.
Regarding monsters ID's, I use
www.pwdatabase.com when you click or search a monsters name and go to it's page, the number at the end of the URL is the ID number.
For example:
I want to find the ID of Devilish Specter
I go to pwdatabase.com and look it up in the search field, and click on its page. it takes me to this link:
http://www.pwdatabase.com/mob/9141
So, now we know 9141 is the mob's ID number. type that into your creature creator (i forget exactly what it's called but it's in there and allows you to type in the ID fields) and it will spawn. You can also select how many you want to spawn.
Hope that helps you.