The browsing history itself is stored in Internet Explorer 8. It's merely a list of websites that you visited. Perhaps you were thinking of the temporary Internet files. Anyway, here are the respective locations for the IE temp folder.
C:\Users\<username>\AppData\Local\Microsoft\Windows\Temporary Internet Files
C:\Documents and Settings\<username>\Local Settings\Temporary Internet Files\
A quicker way to access the files is through Internet Explorer 8. Simply click on Tools
then Internet Options
. From there, select Settings
under Browsing History
and click on View Files