Cuando instalo los mods normalmente, metiéndolos en bin/minecraft.jar y borrando la carpeta META-INF me sale en siguiente error al iniciar minecraft:

Mods loaded: 3
ModLoader 1.1
mod_Uranium UraniumMod
mod_Armor 1.1


Minecraft has crashed!
----------------------


Minecraft has stopped running because it encountered a problem.


If you wish to report this, please copy this entire text and email it to support@mojang.com.
Please include a description of what you did when the error occured.






--- BEGIN ERROR REPORT ea1ae9d9 --------
Generated 29/02/12 18:31


Minecraft: Minecraft 1.1
OS: Windows 7 (x86) version 6.1
Java: 1.6.0_31, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: GeForce G102M/PCI/SSE2 version 3.0.0, NVIDIA Corporation


java.util.FormatFlagsConversionMismatchException: Conversion = s, Flags =
at java.util.Formatter$FormatSpecifier.failMismatch(U nknown Source)
at java.util.Formatter$FormatSpecifier.checkBadFlags( Unknown Source)
at java.util.Formatter$FormatSpecifier.checkGeneral(U nknown Source)
at java.util.Formatter$FormatSpecifier.<init>(Unknown Source)
at java.util.Formatter.parse(Unknown Source)
at java.util.Formatter.format(Unknown Source)
at java.util.Formatter.format(Unknown Source)
at java.lang.String.format(Unknown Source)
at abn.a(SourceFile:142)
at ModLoader.initStats(ModLoader.java:956)
at ModLoader.init(ModLoader.java:843)
at ModLoader.AddAllRenderers(ModLoader.java:189)
at afq.<init>(afq.java:80)
at afq.<clinit>(afq.java:9)
at net.minecraft.client.Minecraft.a(SourceFile:265)
at net.minecraft.client.Minecraft.run(SourceFile:648)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 2ca9ae7d ----------
¿Saben que ocurre? No me pasaba en la 1.0.0.

Gracias de antemano. ^^

PD: Instalé el MOD LOADER, URANIUM MOD y AMOR STAND.