I'm looking around for a script or program, that I can install via SQL onto a domain, in which I can manage receipts/or invoices of my future clients. Does anyone know of any program that does such thing? (I'm willing to pay over $250 if there is a script like this or a type of program.
You might want to call and talk to OfficeSoftworks.co.uk. Explain to them what you want the script to do and how you would like it to work. They normally specialise in Excel but also develop custom web and database / SQL scripting applications.