go back to the original query
the problem is the way the colname parmeter is set up. you have it configured as:
Name: colname
type: Number
default value: 1
Runtime value: $_GET['PackageID']
it should be configured as:
Name: colname
type: Number
default value: 1
Runtime value: $_GET['packageID']
notice the case of the 'p' in packageID.
PHP is a case sensitive language, $_GET['packageID'] is not the same as $_GET['PackageID']
If you would like a tool to help you find the correct INNER JOIN Syntax, Navicat has good visual query builder that help:
mysql_overview.html