Many macs just have a slit instead of a drawer.
I do not have the answer for you, but you might want to post this in the computer section of this forum.......
OR
Check out the forums on the following websites;
www.apple.com
www.appleinsider.com
www.macrumors.com
There are many "Mac" websites that have forums where many other Mac people are very helpful with free advice. The appleinsider and apple forums are great. You will get help there within the hour......very active.
Do a search there.......your problem was most likely already covered.
Frank (happy owner of a new 13" macbook Pro)