Upsetting

Anyone have any ideas?...
I tried to change my background today but I can't because my 'add gadgets' link is missing from my layout page. I am so frustrated. I don't know where it went or how to get it back. :(
It's not the end of the world if I can't get it back, I just won't be able to 'spice up' my page at all... ever.
*GRRRRRRR