Some simple PHP, SQL and DOMPDF work

I am currently using the Siwapp Open Source invoicing software, and wish to make a couple very simple PHP/SQL Customisations. Also one small modification to dompdf. #1 SEARCH FOR INVOICE/ESTIMATE/EXPENSE BY NUMBER HTML Form Fields: Series Drop Down: What sort of record is it?(invoice, estimate etc) List Options Taken From Below Query Taken from SELECT * FROM `series` LIMIT 0 , 30 Number Text Field: what number invoice/estimate/etc are we looking for Submit Button: Lookup result and forward to requested inovice/estimate/expense for editing. SELECT * FROM `common` WHERE `series_id` =$SERIESDROPDOWN AND `number` =$NUMBER LIMIT 0 , 30 This should then re-direct me to the equivilant editing page of that invoice. EG [login to view URL] If Series = Invoice OR Expenses Then forward to [login to view URL]$[login to view URL] If Series = Estimated Then forward to [login to view URL]$[login to view URL] #2 I want to be able to do an extensive (Not a simple: if xyz LIKE xyz) search on Customer Notes, Personal notes, Product reference, product description, then return a table with the date, order number, client name, and the final column showing the Database field that was matched (EG, if it matched the product description, show the content of the product description in the "match" collumn. This should be able to either match the exact string enter siwapp_pcaustralia_com - [login to view URL], [login to view URL], [login to view URL] (Customer Notes), [login to view URL] (Personal notes). #3 I WANT THE GAP/MARGIN ON THE ATTACHED PDF EMAIL INVOICE THAT IS EMAILED TO BE SMALLER UP THE TOP AND DOWN THE BOTTOM (margins not so big) Further customization to come in future.