You are lacking knoledge of basic HTML. See
www.w3schools.com for more tutorials and learn HTML.
1. Define the frame name
<frameset rows="361,268" cols="*">
<frame src="donation_up.htm" name="top">
<frame src="donation_bottom.htm" name="content">
</frameset>
2. create links. At present you only have those flash button without any connection.
<a href="target_page.htm" target="content"><img scr="you_button_here.gif"></a>
3. Make you the target_page.htm page has something to show based on the amount.
.