ePub frazzled

Formatting for ePub (Kindle, Nook, etc.) should not be this hard. I converted the manuscript for Lucid to html, downloaded Calibre to convert and view the file, and it's all jacked up. Makes me wonder how Being John Bland actually turned out since I haven't actually downloaded it (I know, shame on me).

 I want to get this book published but I'm so frustrated right now I can't even make myself look at the files. Ugh...