I am currently doing a zencart install on yahoo small business as well. They will NOT allow the .htaccess files to upload. Not even if you change the file name and then upload...it wont allow you to change it back. Any file that starts with a . is not allowed.
I went and uploaded all other files and installed zencart successfully...but now when I try to view my store it gives me the phpMyAdmin login page. Still trying to figure it out myself. I don't think Yahoo is the best host but I can not change at this time *and I don't want to pay them $30 for their cart if I can figure out how to run zencart instead.*
Best of luck.
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