I registered for adsense after registration it taking long time for approval it is so painful and after approval there is some ads are not relevant to url. Are u the same problem too?
Give it some time for relevant ads to be shown. Make sure you have some content because they wont be relevant to just your url.
First of all, you need to put more text to your page first. And then use section targeting to guide Adsense bot to crawl so as to increase the ad relevancy.
To get relevant ads, use section targeting google.com/adsense/support/bin/answer.py?answer=23168&topic=8441