Or you can also try this
Compliments of TechTV
.............................
Changes to the Registry are permanent. Back it up or you'll be outta
luck if something goes wrong.
Navigate to this string:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control
Panel
If the keys for Internet Explorer and Control Panel are not present, add
them manually.
Right-click the Microsoft key folder, click New, and choose Key.
Name it Internet Explorer.
Right-click the Internet Explorer key folder, click New, and choose Key.
Name it Control Panel.
Right-click the Control Panel key folder and choose "new DWORD value."
Rename the value "Homepage."
Right-click the Homepage value, choose Modify, and change the value from
"0" to "1."
Now go into your Internet Explorer options. Your homepage is locked and
unmodifiable!
Here's a shortcut if you'd rather not edit the Registry yourself.
Download and double-click my file. It will make the above changes to
your Registry automatically.
http://downloads.techtv.com/binaries/2004/homepagelock.zip
............................................johnny