I have forge 9.10.0.800 i have installed it and when I try to run minecraft I get this.

2013-07-18 16:41:23 [iNFO] [ForgeModLoader] Forge Mod Loader version 6.2.35.800 for Minecraft 1.6.2 loading
2013-07-18 16:41:23 [iNFO] [ForgeModLoader] Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_07, running on Windows 7:amd64:6.1, installed at C:\Program Files\Java\jdk1.7.0_07\jre
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Java classpath at launch is /C:/Users/Public/Documents/Other/Minecraft/Minecraft.exe
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Java library path at launch is C:\Users\====\AppData\Roaming\.minecraft\versions\1.6.2-Forge9.10.0.800/1.6.2-Forge9.10.0.800-natives
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Enabling runtime deobfuscation
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Instantiating coremod class FMLCorePlugin
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Loaded coremod FMLCorePlugin
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Instantiating coremod class FMLForgePlugin
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Loaded coremod FMLForgePlugin
2013-07-18 16:41:23 [FINE] [ForgeModLoader] All fundamental core mods are successfully located
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Discovering coremods
2013-07-18 16:41:23 [FINE] [ForgeModLoader] Examining for coremod candidacy EnchantingPlus-1.16.2.jar
2013-07-18 16:41:23 [FINEST] [ForgeModLoader] Registering transformer cpw.mods.fml.common.asm.transformers.AccessTransformer
2013-07-18 16:41:23 [iNFO] [sTDERR] java.lang.reflect.InvocationTargetException
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.reflect.Method.invoke(Method.java:601)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at magic.launcher.Launcher.main(Unknown Source)
2013-07-18 16:41:23 [iNFO] [sTDERR] Caused by: java.lang.NoClassDefFoundError: org/objectweb/asm/ClassVisitor
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.Class.getDeclaredConstructors0(Native Method)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.Class.getConstructor0(Class.java:2714)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.Class.newInstance0(Class.java:343)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.Class.newInstance(Class.java:325)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:81)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at cpw.mods.fml.relauncher.CoreModManager.injectTransformers(CoreModManager.java:371)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at cpw.mods.fml.relauncher.FMLLaunchHandler.injectPostfixTransformers(FMLLaunchHandler.java:108)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at cpw.mods.fml.relauncher.FMLLaunchHandler.appendCoreMods(FMLLaunchHandler.java:113)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:78)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at net.minecraft.launchwrapper.Launch.launch(Launch.java:51)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at net.minecraft.launchwrapper.Launch.main(Launch.java:18)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	... 5 more
2013-07-18 16:41:23 [iNFO] [sTDERR] Caused by: java.lang.ClassNotFoundException: org.objectweb.asm.ClassVisitor
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.security.AccessController.doPrivileged(Native Method)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:110)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
2013-07-18 16:41:23 [iNFO] [sTDERR] 	... 17 more

If using magic launcher you need to run modded mc at least once through the mc launcher.