Correct location for SAP JCO libs

Hi
I'm using IDM 7.0, and I am configuring the SAP ActiveSync adapter, which requires the SAP JCO jar and .so libraries. I'm on a solaris box, and I am using SAP JCO 2.1.8 (there is a more up to date version but it doesnt seem to work with IDM 7)
I've copied sapjco.jar to <idm>/WEB-INF/lib
I've copied librfccm.so and libsapjcorfc.so to /opt/SUNWappserver/appserver/lib
If I don't have them in this location I get very obvious error messages telling me that they are missing (when I do a 'Test Connection' from the Resources tab).
However even with the libraries here, I still get this (very similar error):
SAP HR ActiveSync: Could not initialize the SAP jCO. Please reinstall and check that the needed libraries (librfc32 and sapjcorfc) are available to Java and restart this application. ==> java.lang.NoClassDefFoundError: \n
I was wondering if anyone with a working installation of the SAP ActiveSync adapter could tell me the definitive place to put these libraries. I would rather not place copies of the files all over the place.
Thanks

I was right all along
.so libs go in /opt/SUNWappserver/appserver/lib
jar files in WEB-INF/lib.
Was using the linux version instead of the solaris ones - schoolboy error on my part.

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