Umm... my dlgeditor don't have all that options.
It looks like this:
Is your NPC for K1 or K2?
Only K2 (TSL) has conditionals available to be set for dialogs. If it is for K2, then you need to change the mode in tk102's DLGEditor to TSL. Make sure there is a check mark next to it.
I can't tell from your screenie if it's tk's editor or Fred's... though I'd recommend tk's..
Make sure you have the latest version (2.3.0) here:
http://www.starwarsknights.com/tools.php#de)
Also, keep in mind.. if it is for K2, DON'T use Fred's KotOR Tool for dialogue editing. It'll muck things up ;)
EDIT: Duuuuh... If I had actually looked at the bottom of your taskbar I would've known.. :xp: Definitely check to make sure you have your mode set to TSL if it's for K2...