Marco,

You can very easily buy online using one of the various options (credit card, PayPal...)
Once your payment is validated you will receive an e-mail containing a link to download the software and a serial number.
You can ask to receive a CD when your purchase (for an additional amount of 7.04 EUR) but I'm not sure you really need it... :-)

Current price of MoI in Euro is 139.00 EUR. You will have to pay VAT, probably depending on VAT rate in Italy. From Belgium, the total purchase price for MoI (incl 21% VAT) was 168.19 EUR