on closer inspection, I seem to have had some differences in my steps. hurr durr, I'll get to it in a second and explain why I did what I did.
as for recording lagg: thanks, that fixed it. I indeed recorded at 60 fps. now the recording runs smoothly on everything I tried it. (that is: every perfect run I've ever had :v)
now, things I did differently: I skipped the whole virtualdub part, because I record my things in one piece and don't split them. (I don't think that caused it)
2. after opening script creator, I put in my avi file, as told, but the I get an option in which I have to choose 1 out of 3 "editing" tools. those are "one-click encorder", "File indexer" and "Avisource". I assumed the one I had to open was avisource, because that was the only one that opened a preview window.
3. I never found an edi menu and did my best to follow what was said (like making scrachpad mp3 and blah, blah.) I also never found the placeholders. I assume this is where everything went wrong. I also cannot resize my videos, apparently. or maybe I am too stupid for that. who knows.
4. neutral sharp soft part - no idea.
I think that's it :V here is what my script creator looks like. my version is 2.5.8, if that's important. downloaded the latest shit :V
http://www.abload.de/img/unbenannt3k3jy5.jpg