To be frank the upgrade from vista to 7 should really be a breeze, 7 is pretty much vista done right. It's only got a minor version change so anything specific to vista at the time would still run.
Tile was removed but I never really used it, plus I mostly like the aero snap feature (sometimes does get annoying when you're trying to move windows around near the edges though), also looks like you can use task manager to tile the windows: http://www.howtogeek.com/howto/11073/st ... windows-7/" onclick="window.open(this.href);return false;
