I entered the word 'Pond' into the "Search by Keyword" form field.
CASE 1:
If I leave the "All fields" radio button selected, I get 7 images returned. There are actually 386 images that have the keyword 'Pond'.
CASE 2:
If I select either the "Only image name", "Only description", or "Only keywords" radio buttons, I get the following error:
DB Error: Bad SQL Query: SELECT m.image_id FROM 4images_wordlist w, 4images_wordmatch m WHERE w.word_text LIKE 'pond' AND m.word_id = w.word_id AND wm.name_match = 1
Unknown table 'wm' in where clause
Also, for CASE 1, hitting my browser BACK button doesn't return me to the search form. Instead I see the same search results again but the table width is slightly altered. Hitting BACK again takes me to the page from where I clicked "Advanced Search". I don't know if this has anything to do with the problem or helps in any way.