IF its the right bearings for the cups wich it dont look like it is to be honest , push in the headset cups using a vice and /or a hammer .. push them in all the way , its a very tight fit , so dont be woried to hit it hard or vice it hard , but make sure it gets pushed in straight or it will flaire your headtube .then onto your forks put one of your bearings , then put your forks through the headtube . next up , put the top bearings , an the little silver ring above the bearings , then the dust cover (the ring with a gap in ) then your top cap , wich screws into your starnut ,, but to be honest .. it would be much easier to go to a bikeshop , they will have a headset press , an will tell you if you have the right bearings for the cups ..as its hard to see from the picture .. im pretty crap at explaining things .. but i hope you get the jist x