O.K. I took this quote verbatim from Debra at Debra's Design Studio. I could not have said it any better...To the best of my (Debra's and mine) knowledge (which is small), there is currently a thin line between blogger and blogger beta users that will not allow beta members to comment on blogger blogs if the only comments allowed are for blogger accounts.
If you only allow blogger accounts for comments, I cannot comment on your blog. If you allow others or anonymous comments, I can comment on your blog. I can post as other or anonymous with a blogger beta account. (Had I known. . .).
Once you have gone to the blogger beta, you are no longer a regular blogger. You cannot go back or go between the two systems at random. You choose beta, you stay beta. Or, you design a new blog.
I am sure in the close future, Google will figure out how to make the two systems compatible but until they do, we have to go behind their backs for comments.My suggestion is this --- turn on your Anyone feature in your preferences (Who can comment?). Then, I can comment.
I am trying to do wordpress - with limited success. (My photo did not show up...)