I'm seeing a similar error with TechnicLauncher on win7. I've disabled my Norton Security Suite's firewall and virus checking:
[21:20:08] [sEVERE] ------------------------------------------
[21:20:08] [sEVERE] Launcher is starting....
[21:20:08] [sEVERE] Launcher Build: '1.1.2.0'
[21:20:08] [sEVERE] Allocated 910.25 Mb of RAM
[21:20:08] [sEVERE] Java VM: '1.7.0_11-b21'
[21:20:08] [sEVERE] OS Version: '6.1'
[21:20:08] [sEVERE] Is 64-bit: 'true'
[21:20:08] [sEVERE] [info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.
[21:20:09] [sEVERE] Downloading 'http://206.217.207.1/Technic/CHECKSUM.md5'
[21:20:09] [sEVERE] Downloaded 'launcherCHECKSUM.md5'
[21:20:10] [sEVERE] [info] Downloading 'modpacks.yml' from 'http://206.217.207.1/Technic/modpacks.yml'.
[21:20:19] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/technicssp/resources/icon.png'
[21:20:19] [sEVERE] Downloading 'http://206.217.207.1/Technic/hackslashmine/resources/icon.png'
[...]
[21:21:52] [sEVERE] Downloading 'http://206.217.207.1/Technic/mods/z-technic-configs/z-technic-configs-v7.2.6.zip'
[21:21:52] [sEVERE] Downloaded 'tempz-technic-configs-v7.2.6.zip'
[21:21:52] [sEVERE] Extracting tempz-technic-configs-v7.2.6.zip to technicssp
[21:21:54] [sEVERE] Extracted tempz-technic-configs-v7.2.6.zip to technicssp
[21:21:54] [sEVERE] Downloading 'none'
[21:21:54] [sEVERE] java.net.MalformedURLException: no protocol: none
[21:21:54] [sEVERE] at java.net.URL.<init>(Unknown Source)
[21:21:54] [sEVERE] at java.net.URL.<init>(Unknown Source)
[21:21:54] [sEVERE] at java.net.URL.<init>(Unknown Source)
[21:21:54] [sEVERE] at org.spoutcraft.launcher.async.Download.<init>(Download.java:49)
[21:21:54] [sEVERE] at org.spoutcraft.launcher.DownloadUtils.downloadFile(DownloadUtils.java:35)
[21:21:54] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackUpdater.extractCustomZip(ModPackUpdater.java:99)
[21:21:54] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackUpdater.updateModPackMods(ModPackUpdater.java:86)
[21:21:54] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm$3.doInBackground(LoginForm.java:832)
[21:21:54] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm$3.doInBackground(LoginForm.java:808)
[21:21:54] [sEVERE] at javax.swing.SwingWorker$1.call(Unknown Source)
[21:21:54] [sEVERE] at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
[21:21:54] [sEVERE] at java.util.concurrent.FutureTask.run(Unknown Source)
[21:21:54] [sEVERE] at javax.swing.SwingWorker.run(Unknown Source)
[21:21:54] [sEVERE] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[21:21:54] [sEVERE] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[21:21:54] [sEVERE] at java.lang.Thread.run(Unknown Source)
[21:21:54] [sEVERE] Loading Launcher from 'techniclauncher/technicssp'
[21:21:55] [sEVERE] IDResolver - Loaded 785 IDs sucessfully.
[21:21:55] [sEVERE] IDResolver - Loaded 39 Mod Priorities sucessfully.
[21:21:55] [sEVERE] IDResolver - 'UpdateTickSettings' called.
[21:22:00] [sEVERE] Attempting early MinecraftForge initialization
[21:22:00] [sEVERE] Completed early MinecraftForge initialization
[21:22:00] [sEVERE] 2013-01-25 21:22:00 [iNFO] Forge Mod Loader version 2.2.106.176 for Minecraft c:1.2.5, s:1.2.5 loading
[...]