My b2evolution Version: Not Entered

I have the old blog Version,

http://masterkeywisdom.com/blog/blog1.php

If you don't see the button or if it doesn't work (happens on older b2evo versions), simply type [adsense:] into your blog post where you want the ad.

Tried dozen of times!! Its still not working. Its pointless I keep trying!

I have done everything, Tried everything. My adsense is still not working,

I have been going at at for hours No Joy!!!

Can anyone Please advice.

And Please keep your advice simple My brain cant handle to much technical jagons Lol!!