can you convert realplayer download 2 windows movie maker

the only way i know how to make fan ~ videos - is 2 upload my download videos into you tube ~ then put them together in video editor < witch sucks >

* my friend told me that i have window *

< window movie maker on my labtop >

So i tryed to convert the video but it wouldnt work - i did like 100 tims ~ so i googeled this question and > it told me to download stuff
but im tottly scared to download stuff to my labtop ,

so is there a way to convert realplayer into windows movie maker ???

or does anyone know a good download that wont F*ck up computer