We’re more than happy to host people’s progress bar code. Thing is, you can make it even easier for people by creating a Ning app that includes the code. That way, people don’t have to down/upload anything – they just have to clone your Ning app, which can be done in a couple of clicks.

You can also add some caching features so that the image doesn’t have to be completely rebuilt every time – here’s a good short tutorial: http://tech.ning.com/?action=post&id=726244

Let me know if you want any assistance with this – reach me at yoz (at) ning.com.