Hi Matt, the simplest way is to start out with one of the RPM builds such as
ftp://dry@ftp.os2voice.org/rpm/dooble-2024.11.23-1.oc00.pentium4.rpm and then replace dooble.exe with the one in the zip file. You can use ANPM to install the RPM. Manage-->Yum Tools-->Install Package from File.
What FTP client are you using? With SeaMonkey or Firefox, the URL should work, when it asks for a password, enter your email.
For other FTP clients, you may have to go to ftp.os2voice.org. log in as dry and enter your email address as password, then navigate to the right directory. How you log in will vary on client. Anonymous log in will take you to the regular os2voice ftp site.
Sorry for no recent RPM builds, something broke here and I haven't chased it down.