How to mount both App and Phone Storage over USB for HTC Evo? I can mount my HTC Evo as a USB drive on my Windows 7 machine.

When I mount the drive, I see a DCIM/100Media file, but no photos from my phone are in it.  (I'm wanting to transfer photos from my phone to my computer)

When I look at Settings -> Storage, it says, 


App Storage, 4.41/6.07 GB
Phone Storage, 1.8 GB / 9.93 GB

Photos and Videos 1.65 GB



But when I look at the properties of my G: drive (how it's mounted on the machine) it appears that I have mounted the App Storage, because my Windows box says, the drive I have mounted has used 5.65 GB of 7.40 GB total.

So, I believe I have the wrong drive mounted?  Is it possible to mount both the "Phone Storage" and "App Storage" as USB?  If so, I haven't figured  it out.  gone through all USB and Storage setting screens I could find.....
The phone now mounts with multiple drives. I think the problem was I had never seen that before on my previous phones and just missed it!! :(  My home machine has a lot of drives. I saw one, and missed the second. One drive mounts for the phone memory, one mounts for the SSDCard.