The problem is possibly your use of relative paths over absolute paths. According to your code the flssh file, sh_nav2.swf, is located in the img folder of the guestbook. The same problem applies to the lock img where the path is specified as ../../../../Array%5Bbase_url%5D/img/lock.gif. I'd recommend using absolute paths such as http://www.smoothhustle.com/guestbook/img/lock.gif.
../../../../Array%5Bbase_url%5D/img/lock.gif is seriously wrong. I am curious as to where this came from.
A quick search using the search function of this forum would of revealed that your problem was that you need to specify the base url in the config.inc.php file found in the admin folder. As for changing it look in templates/body.php
it also creates an admin login loop unless you change the field type of one of the SQL fields. For most people there is no need to updat as 2.2 has all the features they want.
Yes but it still all ties together. The Mozilla browser actually opens a port on your computer to talk to the other components. Firefox used to do this as it is based upon the same code. Firefox has to be the most powerful browser available at present. Opera has gone downhill since 6 if you ask me and Internet Explorer is pretty much dead until Longhorn gets released.
Oh please Opera sucks, specially for some Javascript/DHTML things. Mozilla built Firefox to be a standalone browser for people that didn't want to install the full Mozilla suite (browser, email client, IRC client, html editor). Same as they made Thunderbird. Mozilla are so impressed with how these turned out that they are replacing the browser in the Mozilla suite with Firefox. Even Netscape are impressed and Netscape 7.3 is based on Firefox and due early next year.
Yup this is why I test all my pages in Internet Explorer, Opera and Firefox. I also use Firefox as my main browser as it has some nice extensions like web developer and edit css.