My windows 7 RC is about to expire and I need advice

I'm from Indonesia, so I'm sorry with my English. I need a help, how to handle with my Windows and I've activated online.. 2 days ago there is a message box about "Windows 7 Ultimate will expire in 4 days". How to handle it, perhaps some friend can give me a solution. Thanks

I have read severel places, that Windows 7 RC 1 will expire on 1. June 2010 (i.e. here nVIDIA Geforce 285 260 9800 275 295 GT GTX AMD ATI Radeon HD 4850 4870 4890 X2 - Guru of 3D: PC Hardware Reviews News ) But when I run Winver on my Windows 7 RC 1 32 bit it says: Evaluation copy. Expires...

When is the exact expiration date? And how much will the win7 cost retail?

I`m no working in Windows 7 Beta (Buildt 7057) Will I having problems using it after July 09?

I get this after using a Dell activator ( dell laptop too) http://i373.photobucket.com/albums/oo172/howdr/winact2.jpg http://i373.photobucket.com/albums/oo172/howdr/win7.jpg