BOSI inserts a slash at the end of the url you enter, because it needs to append the /logox.bmp for each image.
If you have your logo right at the root of your webserver directory then your logo entry should be
http://www.wearetheshow.com or I think even
http://www.wearetheshow.com/ will work. I'm pretty sure its smart enough to figure it out regardless.
However, it looks to me you haven't set up your team logos on your team admin page.
The source for this page is working and showing a logo
http://www.wearetheshow.com/bosi2005...page.php?tid=1
But the source for the next team is not
http://www.wearetheshow.com/bosi2005...page.php?tid=4
When I look at the source for the second page, where it should show img src="http://www.wearetheshow.com/logo2.bmp" it just shows img src="http://www.wearetheshow.com/". So it appears to me that you haven't set up each team's logo on the team admin page.
As an aside, I would not recommend putting all your logo on the root directory. They'll be much easier to manage if you have a logo directory.