shruti ten

Hi,
I had installed java1.4.2 runtime in C:\Program Files\Java\j2re1.4.2_12 directory. Now I have installed jdk1.5.0 in F:\Program Files\Java\jdk1.5.0_10 directory. So I have both java1.4.2 runtime and jdk1.5.0.
However inspite of adding F:\Program Files\Java\jdk1.5.0_10\bin;F:\Program Files\Java\jdk1.5.0_10\jre\bin; to system path, it still shows
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output of java -version as below.
java version "1.4.2_12"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_12-b03)
Java HotSpot(TM) Client VM (build 1.4.2_12-b03, mixed mode)
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Note - I can't see path set to java1.4.2 runtime anywhere in my system path.
So how do I set path to jdk1.5.0 without uninstalling j2re1.4.2?

Could somebody please help?