downloaded a theme but seems incompatible
mkogel - March 24, 2008 - 15:32
I want to create my own theme, I have my CSS layout and styles, header image, logo img etc. ready to use. Instead of creating all the theme required files, I have downloaded a theme that is nearly the same to th eone I want to apply. I have created the .info file as well. It shows in the theme list on the admin console. However, it displays as "this version is incompatible with the 6.1 version of Drupal core".
Is there a way to enable this this?

http://drupal.org/node/171205
http://drupal.org/node/171205
converting the version number (6.1 to 6.x) in the .info file
When I created the .info file I had used 6.1 as the version number. Even though the Drupal I have installed is 6.1 it did not like this version number. when I swicthed it from 6.1 to 6.x it worked.
values
I don't think that '6.1' is a valid value. The core version numbers are always 5.x, 6.x, etc
my solution
My theme was incompatible and it was driving me crazy. I ended up having to create the .info file in a plain text editor. Because it's a unix file, you want to make sure that there is no line end translation.
Various line termination conventions.
n), alsoreferred to as a linefeed (LF).
with a combination of a carriage return (r) and a newline(n),
also referred to as CR/LF.