I currently have Outlook 2007 on Windows XP. I have bought a MacBook Pro and would like to get Outlook 2011. I understand that I can import the .pst files to the Mac. My e-mail accounts on the Windows XP version are set up as POP accounts so there is nothing I can look at online to see my current set of e-mails (there are about 100,000 spanning 10 years and no -- I can't delete major chunks). If I set up the e-mail accounts as IMAP accounts on the Mac and then import the XP .pst files, willl e-mails then flow back out onto the Web server where the hosting account resides for each e-mail box therefore making them accessible for each e-mail account's Webmail as well as on the Mac and then all will stay in synch from that point onwards whether I used Web mail or Outlook? Will Outlook 2011 work on XP as well, or just Windows 7?