When submitting, it takes the user to an earlier tab while uploading the attachments.

2. We use the tabs widget because it's a really long form.  When submitting, it takes the user to an earlier tab while uploading the attachments.  Is there a better way to handle that?  It looks like it isn't doing anything if you don't look at the status bar at the bottom of the browser.  Can it give a larger message that it's uploading, please wait?

To clarify, when you are uploading a file and it hasn't completed the upload yet, when you reached the final page to submit the form, do you mean that it goes back to the page where the file upload is that is not yet finished?

You should see the percentage of the file when uploading.

Kindly clarify, Looking forward for your response. 

The uploads I attached were very small, the largest was only 750kb, so I guess they would have uploaded at the time that I attached them.

When I submit the form, there is a delay in submitting.  This time though, I noticed that the submit button changes to "please wait", rather than taking me to the top of the form like it did previously. 

I did make one changed in the tab widget settings that might have helped. I set "Allow navigation without validation to no".  I'm not sure if that was what made the difference, but it was a better user experience upon submitting this time.  

We are sorry that we have experienced a temporary issue that caused the slowness on the web site. However, the issue has already been fixed. Are you still experiencing any issue with slow file upload? 

Could you try testing the form again and let us know if you notice any issue? We will be happy to take a look again.