I turned on the console and started Tekkit Classic, and this is all I get:
Running C:Program FilesJavajre7binjavaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4096m -XX:MaxPermSize=256m -Djava.library.path=C:UsersBSKIAppDataRoaming.technicmodpackstekkitbinnatives -Dfml.core.libraries.mirror=http://mirror.technicpack.net/Technic/lib/fml/%s -Dminecraft.applet.TargetDirectory=C:UsersBSKIAppDataRoaming.technicmodpackstekkit -cp C:UsersBSKIAppDataRoaming.techniccachenettechnicpacklegacywrapper1.0-SNAPSHOTlegacywrapper-1.0-SNAPSHOT.jar;C:UsersBSKIAppDataRoaming.techniccachenetsfjopt-simplejopt-simple4.5jopt-simple-4.5.jar;C:UsersBSKIAppDataRoaming.techniccacheorgow2asmasm-all4.1asm-all-4.1.jar;C:UsersBSKIAppDataRoaming.techniccachenetjavajinputjinput2.0.5jinput-2.0.5.jar;C:UsersBSKIAppDataRoaming.techniccachenetjavajutilsjutils1.0.0jutils-1.0.0.jar;C:UsersBSKIAppDataRoaming.techniccacheorglwjgllwjgllwjgl2.9.0lwjgl-2.9.0.jar;C:UsersBSKIAppDataRoaming.techniccacheorglwjgllwjgllwjgl_util2.9.0lwjgl_util-2.9.0.jar;C:UsersBSKIAppDataRoaming.technicmodpackstekkitbinmodpack.jar;C:UsersBSKIAppDataRoaming.technicmodpackstekkitbinminecraft.jar net.technicpack.legacywrapper.Launch Beeskee token:4bc26b02afa442e69980fc3ed7bb81ea:e6d3d98d30094ce79394ae0234c26756 --gameDir C:UsersBSKIAppDataRoaming.technicmodpackstekkit --assetsDir C:UsersBSKIAppDataRoaming.technicassets
Analytics Response [runModpack]: 404
Failed to record event
[Ljava.lang.String;@74bc2f47
27 achievements
182 recipes
Setting user: Beeskee, token:4bc26b02afa442e69980fc3ed7bb81ea:e6d3d98d30094ce79394ae0234c26756
[LWJGL] Initial mode: 1920 x 1080 x 32 @60Hz
LWJGL Version: 2.9.0
[LWJGL] MemoryUtil Accessor: AccessorUnsafe
OptiFine_1.2.5_HD_S_C6
Sat Nov 09 04:06:20 EST 2013
OS: Windows 7 (amd64) version 6.1
Java: 1.7.0_45, Oracle Corporation
VM: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation
LWJGL: 2.9.0
OpenGL: GeForce GTX 550 Ti/PCIe/SSE2 version 4.4.0, NVIDIA Corporation
OpenGL Version: 4.0
Checking for new version
setupTexture: "/title/mojang.png", id: 1
Version found: C6
Nov 09, 2013 4:06:20 AM cpw.mods.fml.common.FMLCommonHandler beginLoading
INFO: Attempting early MinecraftForge initialization
Nov 09, 2013 4:06:20 AM cpw.mods.fml.common.FMLCommonHandler beginLoading
INFO: Completed early MinecraftForge initialization
2013-11-09 04:06:20 [iNFO] Forge Mod Loader version 2.2.106.176 for Minecraft c:1.2.5, s:1.2.5 loading
2013-11-09 04:06:20 [iNFO] Forge Mod Loader has detected optifine OptiFine_1.2.5_HD_S_C6, enabling compatibility features
2013-11-09 04:06:21 [iNFO] Loading mods from C:UsersBSKIAppDataRoaming.technicmodpackstekkitmods
2013-11-09 04:06:21 [iNFO] Directory ccSensors contained no mods
2013-11-09 04:06:21 [iNFO] File NEI_RailCraftPlugin 1.2.2.zip contained no mods
2013-11-09 04:06:21 [iNFO] File NEI_RedPowerPlugin 1.2.2.3.zip contained no mods
2013-11-09 04:06:21 [iNFO] Directory rei_minimap contained no mods
2013-11-09 04:06:21 [iNFO] Directory weaponmod contained no mods
2013-11-09 04:06:21 [iNFO] Forge Mod Loader has loaded 41 mods
MinecraftForge v3.3.8.164 Initialized
2013-11-09 04:06:21 [iNFO] MinecraftForge v3.3.8.164 Initialized
setupTexture: "/ee/art/sprites/eqexterra.png", id: 3
setupTexture: "/ee/art/sprites/eqexsheet.png", id: 4
Initializing alchemy values for Equivalent Exchange..
setupTexture: "/ic2/sprites/ChargingBench.png", id: 5
2013-11-09 04:06:21 [iNFO] [WeaponMod] Properties file read succesfully!
Nov 09, 2013 4:06:21 AM net.java.games.input.DefaultControllerEnvironment getControllers
INFO: Loading: net.java.games.input.DirectAndRawInputEnvironmentPlugin
I'm not sure if this will be of use to anyone or not. It's still ongoing.