distribute my application over the air(OTA)

distribute my application over the air(OTA)

Hi ,
 I have developed an iphone application using jquerymobile. I want to distribute my application over the air(OTA). can anyone help me to distribute my application OTA. I am tried to distribute my apps on my server.I download apps from my url but after few seconds it return an error , that is "Unable to Download Application <apps Name> at this time".
Please help me .

-Kamalakannan.M