AE Media Encoder Alpha issue

Hey There. I am having a major problem here trying to export alpha transparency in Media Encoder from After Effects. I've been pulling my hair for a week trying different settings/etc and when I finally seemed to get things down, then something else would pop up. So, now when I used all my fancy customized presets, I now get a stupid 'ring/border-like' artifact thing wrapped around my object (with transparency behind that!!!!!!!!!). I spent all night again Googling and trying different settings but the results are all the same.  http://slhgraphics.com/MediaEncoderAlpha

AE/Media Encoder? NOT very intuitive and confusing process between the two, in my opinion. Shouldn't be this hard. I was getting 3gb files when I only needed 35mb and had to spend hours trying to figure out how to knock that size down in qt!!!!!!!! Not happy.