Played with it just a bit more...
To initiate a search for a Bible verse in a Logos collection, this is your best option. (EDIT: Note: there should be no spaces in this line. For some odd reason, when submitting this post, it insists on putting a space between 3 and D. You need to remove it if you try copy/paste.)

libronixdls:dialog|name=SearchBasic|search=bible%3 D%22<Book>%20<Chapter>%3A<Verse>%22|collection-name=******

****** is your collection name.
For finding verse refs, remember to have BW
provide "Verse Reference" with "Bible Verse" text type.
You can use "Browse Window All" and map verses to RSV or KJV.