Opera 10 looks for an HTML file named "home" upon start. File\\localhost is your phone main memory root.
All you have to do is save an html file of your choice named "home" to main memory root on your phone. It will load upon Opera 10 startup.
Filename has to be home (no extension) and it has to be html or plain text.
For now I am using a small file that produces a Google searh box. Copy/paste the following into notepad and save with filename home to your phone main memory root. Problem solved.
<!-- Google Search Box HTML Start -->
<iframe src="
http://www.getgooglesearch.com/htmlcodes/searchg.html"
name="googlesearch" allowtransparency="true" scrolling="no"
frameborder="no" height = "60px" width = "468px"></iframe>
<!-- Google Search Box HTML End -->