When you say "native USB tether" do you mean "USB storage" whereby you connect the device running CM7 to the PC using a USB cable and can enable USB storage for copying files to/from the device?
That works fine for me. I get both the internal 2GB "sdcard" and my 16GB external sdcard appearing as drives in Windows.
If it doesn't work for you what actually happens?
USB storage in CWM also works fine for me.
No, USB tethering for internet. Sharing your phone internet connection to your PC.
Dont get CWM Tether confused with CWM recovery, they are two different things. Search ClockworkMod tether on the play store for more information.
Edited by kyan31, 19 December 2013 - 06:17 PM.