VM3.0.2_Paypal Payment Standard: which file can I work on to customize it?

[hhtmp88]

Dear all,

Pls. see attached screen capture for "Paypal Payment standard Output Page"
-> which file and code names should I work on to correct my company's logo size and the product description?

Thanks for any kind of help!

[attachment cleanup by admin]

[alatak]

Hello
Select for the payment type option " Shopping cart" instead of "normal"