No problem. You should take a second look at that ophcrack script. Towards the end there are some lines commented out that shouldn't be, and an extra command option that i use for my version of the script that you might want to remove.
I've also been working on the main script to make the menu it creates in isolinux.cfg a little more friendly, and possibly organize some files a little better. If you would like to see any of it, I can PM you a link to my svn repo.
Caught a potential problem with the Arch Linux plugins. Arch looks for a disk by waiting for a certain label. The plugins seemed to notice this is needed ($ISOLABEL), but it didnt look like it got a label from anywhere. After testing my script, and the latest git repo, this was definitely the case.
To fix it, I put this:
Somewhere after the cd label is determined, but before the writecfg's are called. Around line 115 would be good. And here are the fixed scripts that accommodate the changes.
echo $CDLABEL > tags/cdlabel