I'm can access internet but cannot connect to itunes Store

Are you at work or at home? I know some work places will block iTunes. It's possible that other public wifi may also block it.

The Complete Guide to Using the iTunes Store

http://www.ilounge.com/index.php/articles/comments/the-complete-guide-to-using-t he-itunes-store/

Can't connect to the iTunes Store

http://support.apple.com/kb/TS1368

iTunes: Advanced iTunes Store troubleshooting

http://support.apple.com/kb/TS3297

Best Fixes for ‘Cannot Connect to iTunes Store’ Errors

http://ipadinsight.com/ipad-tips-tricks/best-fixes-for-cannot-connect-to-itunes- store-errors/

Try this first - Reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons.

This works for some users. Not sure why.

Go to Settings>General>Date and Time> Set Automatically>Off. Set the date ahead by about a year.Then see if you can connect to the store.

 Cheers, Tom 😉