Re: 3rd party
In the last 5-6 years I have twice dealt with government websites (one local, one national), where the ONLY way to get them to work correctly was with obsolete versions of Internet Explorer.
The local government one wouldnt work with anything beyond IE6, the National one was slightly more advanced and could cope with IE 7,8, or 9.
However the latter was the biggest PITA, because it didnt fail until the VERY LAST entry in the form I was submitting, and then failed silently with no error message beyond a technical fault had occurred.