Template Madness

Why the 2 names, I don't get it, confusing.  Anyways, I have been trying to upload a new template, instead of using one of these generic ones, they are boring.  So I uploaded the first one I wanted to try out successfully, but after that I started getting this annoying error message. No other templates would load, including the ones that had worked before.  So now I am stuck with one of these plastic like looking things.  uuugghh, the story of my life.  On top of that all of my widgets don't work anymore, I thought that if I saved the code from the original page and re-uploaded it then it should work.  WRONG, everything was messed up, so don't change your template unless your prepared to loose all your widgets, unless your changing to one of the 20 that you can choose from on the blogger palette.  :)