Internet Explorer 7

Windows internet Explorer provided by Yahoo
I downloaded IE7, however, it says its provided by Yahoo. Provided by Yahoo presents all types of problems such as not being able to get into Outlook Express, not being able to view certain IE pages. Is there a way I can go back to IE6 or can I get rid of IE provided by Yahoo? Please Advise?

These are the Error Messages when I tried to uninstall Yahoo Manager:
Yahoo Install Manager cannot be uninstalled because there is no Dll
name specified. Usage: regsver32 [/u][/s][/n][/i[:cmdine]]dllname
/u- Unregister server
/s- Silent; display no message boxes
/i- call Dll Install passing it an optional [cmdline];when used with/u
calls dll unistall
/n- do not call DLL Register Server; this option must be used with /i

This is the error message when a IE page comes up and Yahoo is in the way:
Internet Explorer cannot display the webpage
Most likely causes:
You are not connected to the Internet.
The website is encountering problems.
There might be a typing error in the address.

What you can try:
Diagnose Connection Problems

More information

This problem can be caused by a variety of issues, including:

Internet connectivity has been lost.
The website is temporarily unavailable.
The Domain Name Server (DNS) is not reachable.
The Domain Name Server (DNS) does not have a listing for the website's domain.
If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section.

For offline users

You can still view subscribed feeds and some recently viewed webpages.
To view subscribed feeds

Click the Favorites Center button , click Feeds, and then click the feed you want to view.

To view recently visited webpages (might not work on all pages)

Click Tools , and then click Work Offline.
Click the Favorites Center button , click History, and then click the page you want to view.