Installation Errors

[mikelarry85]

Hi i'm new to Linux operating system and anytime i resolve one issue i get others. i finally got Linux installed wahey but cant seem to install any new applications. i keep getting the error below
Loading "installonlyn" plugin
Setting up Install Process
Parsing package install arguments
http://www.ydl.net/enhanced/yum/6.1/ext ... repomd.xml: [Errno 14] HTTP Error 401: Authorization Required
Trying other mirror.
Error: Cannot open/read repomd.xml file for repository: extras

please help

EDIT: NVM i figured it out. during the installation i chose the option to use my ydl.net account. since i didnt have one thats why i was getting the errors.