The TAMU database is always getting rearranged. I checked the link Chuck gave and I think the file he was trying to send folks to is http://cygnus.tamu.edu/Texlab/Vegetables/veg6.html This is a clear and understandable iteration of the most common diseases associated with tomatoes. The original poster who asked about blackened areas is most likely dealing with BER (blossom end rot). Catharine/Atlanta, zone 7b