I'll try and write a quick howto, however my knowledge is somewhat limited. If it's not detailed enough, please feel free to IM me: xschwinnx or e-mail me
webmaster@wlcthecall.com I'll glady give all the advice I have =)
Well the first step is to take all of the still frames and connect them so to speak. You do this by going to your window where you import video clips (sorry that I don't know the proper name) and right clicking. Then choose import. Click once on the first frame and then at the bottom of the window you should be able to check a box that says 'numbered stills'. Once you do this it will link all of the files together as an actual animation clip.
With this animation clip you drag and drop it into your timeline for the animation. Once you have all the clips where you want them, transistions, sound, etc... Then it's time to export to video.
Go to file and choose export, from there you should be able to select the file type in a drop down box. Choose avi, and watch it go!