Does anyone know how to customize an invoice in RMS?

Hello everyone,

can anyone tell me how to create a custome designed invoice in RMS? RMS requires that you use HTML, something in which I know nothing about, to design a custom invoice/form. Is there a program where I can design the invoice in something like a word document and then copy, and paste the script in the RMS templates folder?

Any information will be extreemely helpful.

Thanks,

Robert