Try this buddy. Another member posted it & it worked for me.
Quick followup this version of Android Tether didn't work for me after rooting. Neither did a couple other wireless tether apps.
I tried instead Wifi Tether for Root Users v3.1beta2 (google it), and it worked for my D2 with Gingerbread 2.3.3. After installing, set it up by select DroidX as your device profile. In addition, I also selected Change Setup-Method to Hostapd (master). So far, it works.