Files in /tcl directories and all .xql files get sourced only at AOLserver startup, unless you specifically ask the APM to watch them. So you need to do 1 of 2 things:
1) Restart AOLServer
OR
2) Go to the Package Manager (/acs-admin/apm). Click on Services. Scroll down to ACS Templating and click on the file-count. Scroll down to the file(s) that you want to watch and click on 'watch'.