[Plugin: Google AdSense] Ads Covering Text?

Hello,

I’ve successfully placed my AdSense ads using the Google AdSense plugins, but the ads I placed within the articles (after second paragraph as suggested by red balloon) cover the text in the next paragraph.

Here are two examples:

http://4b7.fef.myftpupload.com/improving-your-cholesterol/

http://4b7.fef.myftpupload.com/the-myth-of-stretching/

I’ve researched this a few times before coming here and posting and can’t seem to find it addressed.

Thanks in advance for any help.

P.S. If you can point me to a tutorial that teaches how to insert AdSense code next to your logo (to the right of my orange and blue one), I’d appreciate it. Again, I’m using Google AdSense plugin.