Did anything show or just the progress bar didn't show?

If nothing showed at all I would first check to make sure the hook forumhome_above_forums exists in the FORUMHOME template... If so I'd look at any other plugins that might use that hook.

Dont work

https://vborg.vbsupport.ru/

Could be a few things... first if you are using a customized style some hooks might be missing or be in the wrong spot. I would look in the headinclude template for the hooks:
headinclude_javascript, custom_css_links, and custom_css_list.

Make sure they exist in the template.

If they both exist the lack of the Javascript bar is most likely to another instance of jquery being called. Look at the instructions in the top thread under "Known Conflicts."

Also if the hooks are there and the non-animated version isn't working it could be your style has customized poll graphics. Some customized poll styles don't work with this mod since it tries to use the default poll css to show the non-animated progress bar.

vbulletin style defoult dont work...

What version of vBulletin?

Not that I know of, I would test on the default style before being sure the style is the issue.

If it is the style if you post your poll.css template I may be able to suggest a work-around.

Same issue here exactly. vB 4.1.2 No animation, files are in place, using poll styles just gives black bar. My poll.css is not modified from its original version. Looks like Ricsca is running 4.1.2 also: http://www.tartaportal.it/forums/

I can only imagine then that there is some other mod, maybe a fairly popular one, conflicting. I have it running on a 4.1.2 test site without issue, If one of you could copy the HTML Source code on the page for me it might give some clues...

If you enable HTML comments in the general settings I need all code between the following comments:
and paste it in this thread, between [html] [/html] tags please.