For some reason, Technic Launcher worked all night last night (I tested working with already existing intallations and fresh installations. Now it doesn't. I really don't know what to say, so I rolled back to 1.2.8.1 (People using the modpack who haven't logged in yet should not get a notification to update) and People who ahve unfortunately updated already should try to update, if that doesn't work, try clicking the little gear icon underneath the HeroModPack icon in the Technic Launcher and click "RESET PACK".
I'm sorry to cause such an issue. It should work now fully (If you're stuck at the Mojang Screen, let it load, it's just taking forever to load for some reason). I'm working as fast as I can to port HeroMod to Forge as simply ModLoader is having too many issues and too many mods require forge to work now. I'll let everyone know how it goes and the HeroModPack Test team will need to test the future dev-packs for at least 3 days before we push some pack to live. That is something I can do to make sure the public will NOT have issues like this.