Mime types

[Jeremia0]

I read the article http://support.x10hosting.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=9 and it told me i can edit the mime types in cpanel. However, I cannot find them. Can someone point me in the right direction?
Edit:
also i tried doing this:
AddType application/mono aspx ascx asax ashx config cs asmx axd

in a .htaccess file but it doesnt work
Edit:
edit: Now it is processing the aspx file ( i think ) and it gives me this

Service Temporarily Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache Server at kewlgames.elementfx.com Port 80

 

[Jeremia0]

I have been googling this problem for a while and searching the forums, none of the proposed 'fixes' work.

 

[Jeremia0]

Sorry for the triple post, but If I do not reply, it gets closed within 48 hours right?

Anyways, its been about 3 and a half days since I submitted a ticket and got a response the next day. The response was just a copy/paste of a knowledge base article that was not helpful, I posted that It did not work and still no response.