this is in AIX5.3..I need a solution to this issue

I am trying to install Siebel...I have done many instalations of sebel  but  never got an error like this..This is siebel 8.1.1.0 on AIX 5.3..I have java installed with full permisiions and I have added the java path in my .profile correctly like I have been doing..but I get this error

/setupaix -is:javaconsole -console -args SS_SETUP_INI=********/siebel.ini
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.........InstallShield Wizard

Initializing InstallShield Wizard...

Preparing Java(tm) Virtual Machine...
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Running InstallShield Wizard...
The java class is not found:  run

Can you please provide me steps to fix the issue
The java class is not found:  run

I have java installed but still getiing this errror
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build pap64dev-20090707 (SR10 ))
IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc64-64 j9vmap6423-20090707 (JIT enabled)
J9VM - 20090706_38445_BHdSMr
JIT  - 20090623_1334_r8
GC   - 200906_09)
JCL  - 20090705