Are you sure you have all those (I guess I'm not sure what "Tales Of The Texas Rangers - 0001 - 50-07-08 -.mp3" means, for example)? Have you listened to them? Are the two auditions you list different from each other? The distro has only one, which is all that Jerry lists (1950-04-13). At least according to Jerry's and Goldin's logs, the following aren't available and the titles aren't known:

1950-07-08 - #1
1950-10-22 - #16
1951-01-28 - #29
1951-04-29 - #41 (Goldin does indicate he has this, title "Hot Cargo", but only the final 17:06. I see some collections for sale on E-Bay indicating the same thing.)

Missing from this distro:

1950-07-08 - #1
1951-09-23 - #12 "Open and Shut" - same as 1951-11-11; you should make sure the ones you have are in fact different
1950-10-22 - #16
1951-01-28 - #29
1951-04-29 - #41 "Hot Cargo"