amish, i'd suggest you do something like using a buttonmaker program and make your own buttons. Ulead has two i can think of right off. Ulead Cool 3D and Ulead Photo Impact 6. both are easy programs to learn and both allow you to make buttons easily. the trial programs are available for d/l at the ulead site.
photo impact 6 has a great bottonmaker wizard that has hundreds of buttons that can be modified in thousands of ways.
to explain how to do what you want in ps would take too long although it is fairly simple to clean those really terrible buttons up. i also suggest that if you plan to continue with developing web pages, you really should learn adobe photoshop or jasc paintshop pro or corel photopaint. learning one of these will be an indispensible tool. btw, ulead's photo impact has much of what these programs have to offer but may be easier for you to learn.
for other buttonmaker programs just do some searches at your fav download place.