my other utility for the v5 avatar hack, the upload custom avatar, should be working fine with v6 too. its just a matter of changing the require ubb config file and a couple of ubb config variables used through the code. the hack can be found here
i would suggest you to use usernumbers for the custom avatar files, because weird user names can mess image file names, making some impossible to download. you can drop me an e-mail if you have any question about the code, as i think its very simple to understand (and its all commented through the routines). maybe the image file size module, that can be found at cpan.org, can be uploaded to the ubbs module folder for use with the code, but i didnt research to see if that can really be done. good luck .
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