ok this is some thing i added to my osk icon theme cause i got tired of looking at blue folders. and as for the navigation buttons i did not like the cones for back forward and up buttons. what i did was copy the folders in the


.kde/share/icons

section just copy and paste the line in your address bar and press enter.

then right click the tool bar menu for konquerer and configure. then choose a different icon for the navigations. the same goes for the folders. you may have to open the (users and groups) program. and edit the groups for the user. i theink that you need only to enable the root for your user but if it doesnt work select all and then when the folders have been selected disable all groups except for what was allready enabled.
take notes. it helps.

if theres any trouble contact me about it.