The "saved" searches on HotBot are actually a feature of Microsoft Internet Explorer. You can adjust the settings for what appears in the pull down menu of Microsoft Internet Explorer 5. Here is information from Internet Explorer's Help Section:

To adjust AutoComplete settings:

You can tailor the AutoComplete feature to save and suggest only the information you want. You can choose whether to use AutoComplete for Web addresses, forms, and passwords, or not use it all. And you can clear the history for any of these.

1. On the Tools menu in Internet Explorer, click Internet Options.
2. Click the Content tab.
3. In the Personal information area, click AutoComplete.
4. Select the check boxes for the AutoComplete options you want to use.