If you are using IE 8 or below, unfortunately the modern style is not compatible with your browser. Please try a different style, like classic, or a different browser, like Chrome or Firefox or upgade your IE to 9 or above.
Otherwise, this is caused by Microsoft, which in their wisdom, has decreed that any website located on an internal network is to be viewed in Compatibility Mode. To fix this problem for the tipping pages:
For Windows/IIS
On your web server, open the IIS Administration program (which should be in Administrative Tools).
In the left pane, select the folder where the cgi (Perl) scripts have been installed (eg Scripts/tipping)
In the right pane, find the HTTP Headers icon and double click on it.
On the right hand side, under Actions, click on "Add..."
Set the values to:
Name: X-UA-Compatible
Value: IE=edge

Click OK. This is all that is required, your web pages should now appear normally.
For Apache
Create a .htaccess file in the same directory as the perl scripts (eg cgi-bin/tipping/), with the following line:
Header set X-UA-Compatible "IE=edge"
There is a copy of this file in the "utils" folder of the tar.gz file containing the scripts.
This works if you have the AllowOverride option turned on for that directory. If this isn't the case, you can add the line into the Directory section for the cgi directory. eg:
<Directory "/var/www/www.footytipping.net.au/cgi-bin/">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Header set X-UA-Compatible "IE=edge"
Allow from all
</Directory>