hmmmm, the cage isnt highlighting for me even with the cursor on top of it.
Did you construct it? As in, if you go to the (
b)uild menu and try to build a cage (
j) is its cage listed there? If so, build it. A cage lying around as a movable item is like a door lying around not in any hinges... that's the best analogy I can think of, and it's kind of a confusing thing if you don't already know how it works.
On a side note, this game is really amazing. Who needs great graphics when you have a world like this? its sooooo freaking awesome
Glad you think so!

Welcome to the only video game I've ever played that forces you to use your imagination (and is much better for it).
By the way, a random tip I felt I should mention: You might want to slaughter your useless pack animal, everyone embarks with one or two. First make sure you have a butcher's shop and butchery-enabled dorf. Then go to the Stocks (
z) screen and use the arrow keys to highlight the Animals tab at the top, and if you press enter you'll see a list of every tame animal in your fortress. Then highlight the animal and press
b to mark it for slaughter. Killing animals is a (slightly too) effective way of getting food in the current version.