Avisynth script for Microsoft Zune?

[FLX]

Hi,

I'm as fresh as you can be on video converting. I would like to convert a xvid file with srt subtitles to a format that is readable by my Microsoft Zune(wmv).
the standard video size is 624x352 so to get it to look properly on my screen (320x240) i should resize it to 320x180 with a letterbox of 320x240. I heard Lanczos is good for resizing. I also would like to burn in the subtitles.

Here it gets interesting for me; i already figured out that avisynth is a good frameserver and that i should use tmpgenc plus to convert it to wmv (right? or is there a better converter?)
Anyway, i dont have the slightest idea how the script should look like, could anyone please give me an example of how it should look like with the settings i described above?

Thanks in advance!

Regards,

Dennis

p.s i made this script by myself:

# Created by AVSEdit
# FLX 11/19/2006
LoadPlugin("C:\Program Files\AviSynth 2.5\dgdencode\dgdecode.dll")
LoadPlugin("C:\Program Files\AviSynth 2.5\textsub\VSFilter.dll")
AVISource("C:\vid\prison.break.208.hdtv-lol.avi")
TextSub ("prison.break.208.hdtv-lol.srt")
Lanczos4Resize(320,180)
Letterbox(30,30)

[celtic_druid]

I'd probably resize, add borders and then the subs. May as well use the black borders for something useful, otherwise leave them out... unless the Zune stretches the video without them?