Unable to open Quicken 2007 application

Hello,
I am unable to open Quicken 2007 application and getting this weird error message saying “You can’t open the application Quicken 2007 because PowerPC applications are no longer supported”.
What is the main problem?
Have any idea to fix it properly?

You can’t open the application Quicken 2007 because PowerPC applications are no longer supported.
I am using Lion OS and now getting the following error message while opening Quicken to manage bank and investments accounts because PowerPC applications are no longer supported.
Any suggestion would be really appreciated.
Thanks in advance.
