I wonder if you can provide a link to that post?
this is the main one, there are a few others as well, with titles 'keywords' etc
http://www.fotolia.com/forum/viewtopic.php?id=9570very simply,
first 7 keywords count (although I do have a few images that use words after the 7, and images that dont use within the 7

)
changing the order after it has been submitted has no effect as there database is not reindexed. You have to contact support if you want this done. (however they just asked me to supply every image number that is a problem with examples of searches for each image that I felt they should appear within - for 2000 images

(I had told them 2000 images - so am rewording my request and asking again)
Images may only be submitted once according to fotolia, so even delete and resubmit is apparently not acceptable - apparently people are being told no on resubmit as it has been on before.
and of course they have tighter standards now, since their competition was announced my acceptance dropped to around 50%. and my last batch which was just after having a complain about the keyword situation I had 2 out of 20 accepted (19 of 20 at 123 and ss, 20 of 20 most other places, images refused for technical quality that istock have accepted???) maybe just coincidence???
basically their view is, get it right first time. (even though when you look at one of your images at the top "It's one of your files, you can index it" this puts you to the edit data screen where you have the reorder keywords. Just another broken bit of the site?)