To change messaging shortcut in eclipse, first go into safe strap and wipe cache and dalvik. Then flash this mod(thanks to eye dea for creating it for me)
http://db.tt/HI82SZQ0
This will change your lock screen to stock so that you can add different messaging shortcut. Also changes battery icon to a nice circular 1% icon and gives you some sweet looking toggles.
Optional:Then flash this RAZR m messaging zip if you want messaging from new razr:
http://db.tt/AUEyaebk
Reboot.
After reboot , go into file managing app(I highly recommend root explorer) but es file explorer works too. And choose 'system' and then 'app' and long press on MMS.apk.(that's the eclipse messaging app). Select move to, and back out to 'SD card ext' and paste. Now back out of file manager and turn off screen, when you push power button again you should see your messaging app on lock screen. Slide down to be sure it launches messaging correctly.