> i am trying to download all jpg files from within 
> www.deviantart.com domain AND its subdomains (such as 
> browse.deviantart.com and images.deviantart.com). i 
> realize that i need to set the filters but i am having 
> difficulties.

Set Options / Scan rules:
+*.deviantart.com/*.jpg

BUT also define reasonnable download settings (as jpg files 
can be HUGE) :

Set Options / Limits / Max transfer rate:
10000

Set Options / Flow Control / Number of connections:
2

> i should also say that i do not wish to save 
> any of the other files (.htm, .gif, nor .jpg smaller than 
> 20kb, etc..).

-**[<20]
+*.deviantart.com/*.jpg

.. but beware: you may exclude the frontpage (<20KB?)

This one might be better:

-**[<20]
+*.deviantart.com/*.htm*
+*.deviantart.com/*.jpg