Plugin WebMoney for SunShop. PHP script adds WebMoney payment system to internet-shop SunShop (versions 2 and 3). You should do some changes to SunShop scripts and add row to mysql table config to make the script working. There is a step-by-step instruction to make necessary changes.
Attention! You should have "WebMoney Personal Attestat" to receive payments to your WebMoney purse, otherwise you can receive payments in test mode (no real payments).