Xyzyxx 0 Newbie Poster

I'm having a terrible time foguring out Internet Explorer and its two versions. I pinned it to the taskbar, but when I click it, it opens a second icon running the 64 bit version of IE. Clicking links in emails and external applications opens the link properly in my pinned icon, but clicking on the 32-bit icon itself opens the 64-bit program.

http://i48.tinypic.com/23uwjlg.jpg