Mislim da je dovoljno da u KDE Control Center podesiš proxy i to je to...
KDE Control Center > Network > Proxy
A i čini mi se da je Kget samo "GUI" za wget, tako ćeš teško da izbegneš spominjanje wget'a
In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penisses, taken Viagra and are looking for a new relationship.