I know that it is possible, i converted some footage when i was trying the cineform trial..!
You dont use a preset in AE, as you are converting the files first somehow(cineform, raylight, edius, whatever...!), you just drag the final clip on the "project-icon" in after effects and it will automaticly create hte right settings..!
The only thing you have to adjust might be the apect ratio down the preview window...then its gonna be displayed the rigth way!
wenn Du noch fragen hast, schick mir einefach eine Nachricht, habe erst jetzt gesehen dass Du aus deutschland kommst..sorry!