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The problem is that the user is only a member of the 2 groups. If you add yourself into all the groups they will appear for the search. The manage group page is smart enough to knwo that since you are in the webmaster group you can be trusted to see all the groups, but the search page assumes you are a mere mortal even though you are a webmaster (it just doesn't check). You could probably fix this yourself if it's a big deal, by comparing the code for the 2 pages and making them consistent.
My main focus right now is getting my modules ported to XOOPS 2.2. I have integrated the membership module into the new profiles and am going to submit the changes to Mith for possible inclusion in the next release. When you switch to 2.2, PM me and update you on my progress with those changes.
Dennis
The software industry is the only industry where selling goods known to be defective is perfectly legal, and then you can charge extra for fixing the defects.