I since last few days I have been trying to install Ruby on Rails v 2.0.2.
I have found out that there is a problem with the scaffold, so none of the tutorials work.
Now, the thing that worked for me is....
I just lowered the version from 2.0.2 to 1.2.6 and dance.. it worked!
just write this commends (for windows)
gem uninstall rails (enter)
gem install rails -v 1.2.6 --include-dependencies
and its done! no more scaffold error!
If you want more than search for "deprecated scaffold"..
Have fun! need more help post comments.