I may be wrong but when you go to buy a paid account, (by clicking on "upgrade account" under "site") there is an option for who you want to receive the extra userpics i.e yourself or another account or asylum.
I think you or the person getting the permanant extra userpics has to have a permanent account already or be buying one to qualify for buying permanant extra userpics too.
I think you or the person getting the permanant extra userpics has to have a permanent account already or be buying one to qualify for buying permanant extra userpics too.