That looks like changes in functions_reputation.php (the file that, logically, has functions related to reputation). I have a customized functions_reputation, because otherwise the bigger people here would be running around giving 15000 point reps instead of the low 30's they're giving now.
I've changed that functions file, and I think things are working right. You'll want to verify.
copied from default theme. May or may not look out of place in gotwoot theme. Now accepting gif submissions for missing or weird-looking buttons.
favicon.ico. unpacking the vbulletin archive and deploying it overwrote it, and I had forgotten about it. I've replaced it, but you may need to clear caches and/or refresh, or wait for it to expire from your cache before the G logo shows up again.
Ugh. Seems like JS problems. Have to look into that, noted.
In other news, after 4 hours of sleep and a pretty intense 10 hour shift, I don't think I have a whole lot to give to these issues tonight. I'm going to use the first post in the thread to organize the list of problems and their statuses. Let me know if I got everything right, what I'm missing, etc. I'll try to get some time to fight with it tomorrow...