Quests not working

[SoltanHeatwave]

I recently got my server working and am experiencing some problems with quests that aren't working. I can hail a quest npc and it doesn't matter how close I am to them they won't respond, for instance all of the exterminator npc's in the cities. I have only been able to find a few quests that actually work.

When I made the server I downloaded the files and placed them in the correct folders and made certain that I copied the plugin's to a plugin folder that I made. I have tried different versions of the client. I have tried both Titanium and Secrets of Faydwer. Neither client will get the quest npc's to respond. I checked the quest folders and noticed that some of the folder have both a .lua file and a .pl file. The quests that don't work do not have a .pl file with the npc's name. I am to new to really know if that makes a difference or not. I just noticed that individual npc's with a pl file work and those with a .lua file don't .

I noticed a few discussions about Lua. Am I going to have to download and install lua in order to get the .lua files to work with their corresponding npc's? If so which version am I going to have to get? Thank you for your help.