perhaps recording a web query macro with real data and modifiying the code in post#10 will help.

if i were assigned such a project, keeping in mind that i'm not experienced, i would contact the web designers from it department -or my customer representative, if any, who may built connection with them- of the forwarder company. to get the table, form, element id's etc.

since these are one word parameters, companies may help on this as part of customer satisfaction policies.

for experts, it may be easy to extract related info from html document.
below may give an idea...
http://www.tushar-mehta.com/publish_...ages_services/