I'm assuming one of the closing tags for the table elements was missing maybe. Or possibly you just needed to make a second table, because you can't go back to one column within the same table if you started with two columns.
I just visited your post and saw that you reverted to the two columns without tables, but if you would like, you can send me the draft you made with the table, and I can take a look at it and see what went wrong if you want.
RE: βοΈ Ultimate Hive HTML Post Formatting Guide βοΈ