Advanced Profilo SEO and Adsense-ready WordPress theme designed and optimized by Headsetoptions and Mandarinmusing, originally for GETM based on Profilo, a TextPattern theme. This 2 column free WordPress theme has many advanced functions like an options page to edit the theme style without editing any codes, making it simple and easy to use, straight out-of-the-box. [...]

GREEN LUSH: Download | Test run | Support
2 Columns, Green, White and Blue, Fixed width, Widget ready, Right sidebar, Blogger Template ported to WordPress, Clean All-purpose Template
Green Lush 2C: (2 Columns version) A fresh, neat and clean theme for WordPress by Headsetoptions and MandarinMusing based on “Green Lush” Blogger Template by Yamasaki. [...]

GreenLand is created by WordPress Theme Land
Favoloso A fluid and light theme by Julian Klewes
Abstractia is a theme with a focus on typography and colors by Rob Goodlatte
Dark Pink is a 2 column fluid width theme with the sidebar on the right of the content area by Your Index
RockinBlue 2.0 is a Web [...]

Orange-sunrise: A new “widget� ready WordPress template with a professional look by Headsetoptions.org and MandarinMusing based on design by dcarter
Cliff: A bright and fresh theme with an outdoors feel by Themey
Absolutely Green theme, designed and coded by Darjan Panic and BrianGreen.
Sushi, newyorker by Milo
Vertical by Ivan Garcia
WPTP2 is a wordpress [...]

You all know why:

Deactivate all the plugins before you upgrade.
Go to ‘Manage’, then to ‘Export’, then click on the button which says ‘Download Export File’.
Upload all the files and folders, except the wp-content, the reason being it has all your plugin and theme files, so there is no need to replace them as it is [...]