Try downloading GeorgeS quest tools from his website. You can find his site link in his signature. He posts in the tools section ALOT so check for it there.
I see the reason why that particular quest you are using to test is failing. There is a typo in it. Here is the text and I highlighted the typo in red. GeorgeS tools would make it easier to find errors like this as it is color coded.
Code:
if($text =~ /correct components/i) {
quest::say('Now that I have crafted the Treant Bow Staff, you shall need one Planing Tool, one Treant Bow Staff, one Micro Servo and one spool of Dwarven Wire. These items will be used with your Fletching Kit as all other bows. Be forewarned, only a Master Fletcher can create such a bow and even a master fails from time to time. Good Luck.'); }
if($text=~/I will gather materials/i && $class eq "Ranger"){
quest::say('Take this pack. Go to Kaladim, find Trantor Everhot and ask for dwarven wire. Then go to Freeport to meet Jyle Windshot. Search the inns for him and ask him for treant wood. Then, collect some spiderling silk from spiderlings and finally, in Steamfont, we have the permission of the gnomes to use any micro servos we find while destroying rogue spiders. Combine them all and return the pack to me.');
quest::summonitem(17367); }
You have single quotes ( ' ) where you NEED to have double quotes ( " ). It won't work like that. Syntax errors are easy ways to break quests completely so the NPC will not respond.