This question was answered in the Microsoft chat session that took place recently.
quote:Jon_MSN (Expert) Q: How can I join the MSN Messenger Beta? A: For those that are not yet a beta tester and enjoying this chat. You can nominate yourself by going to beta.microsoft.com and logging in with your passport. Then type the guestID of MSNBeta (Case sensitive), click on survey and fill out the nomination survey. We will then review it and accept.
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