I'm not grokking this. You're saying that you see other people's blogs and they look nice. Why edit the theme? Just use the theme you like. Basically every mod

I'm not grokking this. You're saying that you see other people's blogs and they look nice. Why edit the theme? Just use the theme you like. Basically every modern blog engine or CMS has a theme directory, either 1st party by the developers or run by the community.