Please any one fix it my Web application error........?

Hello

I'm new for web developing recently i was created simple web application in phprunner its works perfectly in localhost via IIS..... now I'm trying to run this application in web server its doesn't work for me simply getting error like

"Warning: odbc_connect() [function.odbc-connect]: SQL error: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified, SQL state IM002 in SQLConnect in C:\Inetpub\vhosts\rssc.freeaspwebhosting.org\httpdocs\include\dbconnection.php on line 7

Fatal error: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified in C:\Inetpub\vhosts\rssc.freeaspwebhosting.org\httpdocs\include\dbconnection.php on line 10"

can any one pleas explain how to fix it .

here am providing my windows hosting parallels plesk panel along with user login & password

http://www.freewebhostinggroup.org:8880/

login: rssc

password: YOjTVKD

email:moin528@gmail.com