I have upgraded the Voltz server to 1.1.4
If you get any errors on connecting you will want to force upgrade to the latest build. Instructions are below and thanks to Tatali0n for the tip.
1. Open Technic Launcher
2. Under the Volts Mod icon you need to click the Gray Gear
3. In the settings screen check "Always Use Latest Version" and click Save
4. Restart Tekkit
5. Launch Voltz to update your files
That should do it and you will be ready to melt your foes faces off.