Yes. The default logo is a GIF file (logo.gif) 350 pixels wide and 50 pixels high. If you have your own GIF logo then simply upload it as logo.gif to your server. The logo can also be a JPEG file. In that case, upload the JPEG file to the server and then change the URL to the logo in the Admin. There is more information about changing the logo in the 'Tips and Tricks' section of this Knowledge Base.
There were over 1000 new customers in the four months since September 2005. The script has been installed on over 2000 different websites and hosting accounts, making us the most popular script in the market sector. We try to keep a high rate of satisfaction and 99% of our users are extremely satisfied with the script we have written. Please see the list of 'some websites running our script', shown on our homepage. http://www.milliondollarscript.com
The demo to the Admin is here: http://www.milliondollarscript.com/demo/admin/ (Password: ok)