But I thought you read through the guides/faq's on the site??
http://www.animemusicvideos.org/guides/
You downloaded all the available codecs and packs?
The AMV app?
You should try exporting it as a Huffy first...
Then use Virtual Dub to make a deinterlaced Master file as a Huffy.
And Uncompressed audio!
After that, you should delete the first Huffy and use the deinterlaced Master file.
Use VDub to make XviD/DivX manageable file sizes for download.
And Compress the audio!
Use TMpegEnc to make Mpeg 1 files for download... and/or high quality Mpeg 2 files.
And Compress the audio!
The guides are there to help out as well! 8)