By the camo pattern and the cams the bow appears to be an old High Country. I magnified the photo and W1 is on the cam body. Is W2 on the bottom cam by any chance? The HB is on the module. I don't know just what the HB means, but if you should find somebody that has modules or one of these bows then he should know what you need and make some recommendations.
To get to the masses I would try
www.archerytalk.com.
www.bowcountry.com is another one.
Not sure about this, but type in your browser: groups.msn.com/archeryrepair Click on the bow specs section at the left side of the page. You may get some info from there.