Probes are not very complicated , you connect the + and - to your little input coax . Your oscilloscope too looks very simple .Mine has like 50 buttons , half of them I never use , A manual is just too complicated , I played with it and discovered what buttons did what etc ...
Be careful with home made probes , they have inductance and leaves little kicks and might make you think that theres something wrong when theres not .
For a free scope that is good . A PC scope is just pure crap , analog is just simpler to use and better quality .