Looks like something in the GetFirst() subroutine got messed up. It's the routine in topic.asp that displays the first post in a topic. Double check the poll mod code in that section.
If you can't find anything amiss, post a txt version of your topic.asp file.
Okay, thank you. . . I've been through it multiple times and just did again. topic.txt is here There's two other mods in it but everything is clearly noted.