Browser out of date

[loritaube]

I attempted to manually enter a sweeps in the "Your sweepstakes" section of the software. After putting in the website, the browser screen showed me this message:

"Did you know that your Internet Browser is out of date?
Your browser is out of date, and may not be compatible with our website. A list of the most popular web browsers can be found below."

There was no way around the message, so I couldn't add the sweeps.. Is there something else I could have done?

Here is the sweeps location: vacations2discover.com/getaways/radio-hall-of-fame-sweeps/