Thats unfortunate. I could select the version in the old launcher and it wasn't solder enabled....
ah well, thanks for the clarification.
To anyone that is encountering this problem, I just made my own modpack that pointed at the following URL: http://j1.jacgaming.com/technic/uplink/lapitos/build/experimental/Lapitos_Update3.zip
I'm not going to advertise my pack because that seems a bit unethical, but if you create your own pack that points at this URL, and then copy your save from the lapito's galacticraft folder, you can make your game playable again.