Did you read the Guide? Try the Java updater in the Guide thread listed at the top of this forum. PM me if you have any trouble after trying the Java updater.
Note: Posting and then PMing me about your problem just wastes my time and yours... I'll read the thread anyway, but if I have to read the PM first, then the time I spent reading the PM is time that I could have been reading the thread and replying... so in the future, post OR PM me; don't do both. If I specifically ask for a PM, then PM rather than post. Thanks.
And with that note... please search and read stickies before posting. As your answer is in the Guide sticky. iLock.