After finally figuring out a few things about the script creator and version 3.x scripts (instead of trying to copy from old scripts, by the way the website documentation should have a big red "outdated" sign), it appears that the download function doesn't work for me in 3.1 on Kubuntu Hardy.
Basicly, after the download starts if I move to a different window the download dialog will freeze and refuse to refresh or redraw. I've tried it several times now and it's nothing wrong with the download, it's when I switch focus to something else.
If anyone else would like to try, this is the script I'm working on now. After the episode download starts, navigate to some other window and back. Does that work for you?
if [ "$PLAYONLINUX" = "" ]
POL_SetupWindow_presentation "Sam and Max 205: What's New, Beelzebub?" "Telltale Games" "http://www.telltalegames.com/samandmax" "Kjella" "sammax-205"