Modify Print Invoice Program

i need to modify my program that creates word document. attached is screen shot i need to add 3 features Config file i use in in PIT/bin/Release/[login to view URL] 1. When language is US Add selection Canada Item - single item under International Item - Single Item - this uses CanadaItemSingleItem_US_default function in [login to view URL] Add selection Canada Item - multiple items under International Item - Multiple Item - this uses CanadaItemMultipleItem_US_default in [login to view URL] When languages is China these 2 selections should not be there 2. When Language is US Add selection Over 1lb - single item under Canada item - single item - uses over1lbsingle function in [login to view URL] Add selection Over 1lb - multiple item under Canada item- multiple item - uses over1lbmultiple function in [login to view URL] When languages is China these 2 selections should not be there 3. run function id_from_accessoryproduct to get phone_id and phone_model_id of items for each invoice when running. pro=[login to view URL] from select statement if resultset is not null then if phone_model_id is matched in [login to view URL] then display set {{coupon}} to /img/coupon/pmi/[phone_model_id].png else if phone_id is matched in [login to view URL] then display set {{coupon}} to /img/coupon/pm/[phone_id].png else set {{coupon}} to /img/coupon/[login to view URL] if resultset is null then set {{coupon}} to /img/coupon/[login to view URL]