Problem installing 6 htaccess

Hi Forum

My ISP is running windows servers with IIS and uses Helm to manage my domains running PHP5, MySQL5 and with options for aspx and coldfusion.

Everything works fine throughout the install until I try to view the index.php in the root.

With the .htaccess file present I get the following error message post install.

IISPassword
The page cannot be displayed
There is a problem with the page youare trying to reach and it cannot be displayed. It is most likely that configuration files for this url are corrupted.

Please try the following:

* Click the Refresh button, or try again later.
* Open the home page, and then look for links to the information you want.
* If you believe you should be able to view this directory or page, please contact the Web site administrator by using the e-mail address or phone number listed on the home page.

HTTP Error 500
IISPassword for Internet Information Services » IISPassword Info

With .htaccess removed the following error occurs

Access denied

* warning: array_fill() [function.array-fill]: Number of elements must be positive in C:\Domains\mydomain.co.za\wwwroot\includes\database.inc on line 240.
* warning: implode() [function.implode]: Bad arguments. in C:\Domains\mydomain.co.za\wwwroot\includes\database.inc on line 240.
* warning: array_keys() [function.array-keys]: The first argument should be an array in C:\Domains\mydomain.co.za\wwwroot\modules\user\user.module on line 500.
* user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 query: SELECT p.perm FROM drupalrole r INNER JOIN drupalpermission p ON p.rid = r.rid WHERE r.rid IN () in C:\Domains\mydomain.co.za\wwwroot\modules\user\user.module on line 500.
* warning: array_keys() [function.array-keys]: The first argument should be an array in C:\Domains\mydomain.co.za\wwwroot\modules\block\block.module on line 406.
* warning: array_fill() [function.array-fill]: Number of elements must be positive in C:\Domains\mydomain.co.za\wwwroot\includes\database.inc on line 240.
* warning: implode() [function.implode]: Bad arguments. in C:\Domains\mydomain.co.za\wwwroot\includes\database.inc on line 240.
* warning: array_merge() [function.array-merge]: Argument #2 is not an array in C:\Domains\mydomain.co.za\wwwroot\modules\block\block.module on line 407.
* user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') OR r.rid IS NULL) ORDER BY b.region, b.weight, b.module' at line 1 query: SELECT DISTINCT b.* FROM drupalblocks b LEFT JOIN drupalblocks_roles r ON b.module = r.module AND b.delta = r.delta WHERE b.theme = '' AND b.status = 1 AND (r.rid IN () OR r.rid IS NULL) ORDER BY b.region, b.weight, b.module in C:\Domains\mydomain.co.za\wwwroot\modules\block\block.module on line 407.

You are not authorized to access this page.

Please advise what need to done to get this working.