498009 Enable twitter login/smartphones to upload files to our site

we have built a site that displays well on a mobile phone. There are two problems with the site when used with a mobile phone. First: The site uses the twitter api to login. When this is done via a smartphone, the login seems not to complete. Second: Once logged in, the user cannot click on the "upload" button to upload a file. The button does nothing. Since the site displays well on a smartphone, we are not looking to have the site redone for mobile devices. Instead, we are looking for the above issues to work correctly on a smartphone.