What steps will reproduce the problem?
1. Copy extracted binaries to server
2. Enter settings in config.php
3. Set write perms on 'files' folder
4. Browse to <server URL>/skg_web/index.php

What is the expected output?
Install routine to start

What do you see instead?
Warning: require_once(/skg_web/includes/functions.php [function.require-once]: failed to open stream: No such file or directory in C:\inetpub\wwwroot\skg_web\index.php on line 29

Fatal error: require_once() [function.require]: Failed opening required '/skg_web/includes/functions.php' (include_path='.;c:\inetpub\php\includes') in C:\inetpub\wwwroot\skg_web\index.php on line 29

What version of the product are you using?
1.9.0 beta

Do you have an error log of what happened?
Warning: require_once(/skg_web/includes/functions.php [function.require-once]: failed to open stream: No such file or directory in C:\inetpub\wwwroot\skg_web\index.php on line 29

Fatal error: require_once() [function.require]: Failed opening required '/skg_web/includes/functions.php' (include_path='.;c:\inetpub\php\includes') in C:\inetpub\wwwroot\skg_web\index.php on line 29

What is the URL of your SKG Web installation?
http://anthonyb.dyndns.org/skg_web/index.php

Do you have access to the function phpinfo();?
Yes

If so, please provide a url so that we may view your PHP Setup to determine if your PHP installation is causing an issue.
http://anthonyb.dyndns.org/phpinfo.php

Please provide any additional information below.
*I think* the problem may lie with the fact that 'home_dir.skg_dir' appears to be generating just '/skg_web', while $homeURL and $skgURL generate correct values respectively.