Ipod nano 7th gen and Nike+ tab missing - solved

I spent 4 hours to discover how to solve problem with syncing data from Nike+ app on Ipod 7th gen with iTunes and then with Nike+ web site and I wanted to share with all users that can face same problem.

Things below will lead you to success and peace of mind:

• You have to have at least one run (not walk) training - than tab for syncing will appear automatically, otherwise you can spend all your life to look for solution.
• Walking is not a training for iTunes so, if you walk and never run - no syncing.. no Nike+ in your iTunes
• You have to use same e-mail address on iTunes and Nike+ website for syncing.
• Remember - new iPod nano, without run data - no Nike+ in iTunes - first go to run, or at least shake the thing a little bit to make some fake training to see how miracle of sync is happening.

And that's it.

Honestly it's not so obvious when you buy this little companion.