Ok, I just did mine.
1. go to the registry and navigate following the above instructions from Andrei.
2. right-click in the right pane and select 'new' and then select String value. Call it QueryDir. Make a 2nd one and call it ListDir.
3. double-click the QueryDir that you just made to pop up the modify dialog and enter the path to where you want your Queries folder to go. You don't have to call it Queries, but I did. I used

C:\Program Files\OrangeCD\Queries

4.repeat step 3 for ListDir. I used Lists.
C:\Program Files\OrangeCD\Lists

5. now you have to actually create the folders Queries and Lists (or whatever you called them) in the same place you specified in the above 2 locations. You're done.

Worked for me.

Steve W