After accessing the stock_by_attr_install.php file, need to run the install (if haven't) within that. Note, above there has been some reporting of installation issues. I haven't been able to reproduce them and there is a sort of "test" plan described at
this post. Initial report was that perhaps the browser used has/had something to do with it, but I haven't heard back about the testing that should more reliably identify some level of commonality.
There are a lot of other possible ways to track down the issue if it can reliably be reproduced. I'm also going to try to see what I can discover, but I basically did that testing on a new site but didn't experience the described issues...
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