What format are the dates in? If it is an ical file you can import to Google Calendar/Outlook/Your Desktop PIM of choice and then sync to your blackberry.
Anagram is free for BB. You can highlight and copy the text on the website, then click the bb menu button and select Capture with Anagram. Should work. Nothing auto for what you are talking about
Posted from my CrackBerry at wapforums.crackberry.com