Setting up Ruby for use with MS SQL 2008

Hello there! I am pretty close to being able to develop in rails, but I keep running into a problem with my setup in connecting to my MS SQL database. When I try to navigate to my control page, I get the "..but something went wrong" page. In the dev log I get the following error:   Unable to load driver 'ADO' (underlying error: uninitialized constant DBI::DBD::ADO) I have configured my database.yml file correctly with:

development:   adapter: sqlserver   host: GAV64   username: gavlogin   database: helloworld_development   password: mmmfet$$1

I have also followed the install instructions at Rails SQL Server · GitHub in the install package, but still to no avail. I have also copied the ADO.rb file into the C:\Ruby\lib\ruby\site_ruby\1.8\DBD\ADO directory. I think iv had a reasonable stab at getting it going myself, but I think I now need some new suggestions! I am running Vista64 with MS SQL 2008 64 bit edition. Any help is appreciated!