Liberty Reserve ewallet or ecurrency is payment processor with irreversible payments.

Many people prefer LibertyReserve, because they are anonymous (Costa Rica), irreversible and have decent fees to receive money transfer (1%, but 0.01 minimum and $2.99 maximum).

You canot fund LibertyReserve other way than using an exchanger. LR has some approved exchangers which you can find at "Buy/Sell LR" page.

http://LibertyReserve.com