Forms not working with updated jQuery
I'm working with a client who uses a sort of clunky CMS system. The jQuery the CMS uses is a very old version, and I had to update it to a newer version to get certain plugins working. However now the forms aren't working. When you press submit nothing happens.
I'm no programmer, but I try to work things out. I noticed the form tag had an onsubmit="return false;" tag. This worked with the old version of jquery, but not the new one. When I get rid of that, it insists there is no e-mail entered in the form.
I think this has something to do with the form validation, but I can't figure it out. I've had to call the old jQuery on any page with forms, which is getting pretty complicated.
Here is a form that's currently using the old jQuery (which works):
Using the updated jQuery (nothing happens):
And using the updated jQuery with onsubmit="return false;" removed (validation screws up):
Thank you for any help!