You can still buy some low level adept or treasure items to broker at begining ( with some luck you can find some cheap ).

anyway after reaching 100, thats mean items level at 25 if i am right , you can only lvl up in the tradeskill instance then at 104 you can transmut lv 26 items, 108 lv 27....

YES its a nightmare !!!!

i have a guide but its french sorry ;O