BuddyPress.org

Hi all. I have 2 queries related to ‘Date’ field displayed during registration.
(1) Please look into the below image which shows my theme’s date field. It’s terribly bad! How to tweak the date field to display aesthetically pleasant?
http://imageshack.us/photo/my-images/4/datefieldissue.jpg/
FYI, my code snippet is uploaded here: http://pastebin.com/kyXZRFh3
(2) I would like my niche based website to allow users to create an account only if their age is above 14. Hence, the ‘Year’ field in the Date control should also need to be tweaked. Please guide me.
Well, as you can see, I am not a techie guy who can do these simple tasks. But, if anybody guides or provide me a sample code, I would try a bit next.
Thanks in advance.