Is my Visa number available? Advise please!

I am from mainland China, and my wife from Taiwan. I filed my 485 with EB2 on 8/17/2007. My PD is 02/2006. Is my Visa number available? Someone told me the answer is YES. He said I could follow the rules for the EB2 for people from Taiwan. I am the main applicant, and I just doubted how the officer would get the sponse's information on my case. Should I call uscis, or ask the attonery to write a notice?
I hope I have made my questions clear. Thank you for your serious input in advance.

所有跟帖： 

• Write a letter to USCIS claiming visa inter-chargeability. -giant_hippo- ♂ (0 bytes) () 12/05/2007 postreply 13:28:30

• 回複：Write a letter to USCIS claiming visa inter-chargeability. -fingerprintss- ♂ (26 bytes) () 12/05/2007 postreply 13:46:25

• Country of chargeability may not apply - 回複：Is my Visa number av -pjiang- ♀ (1043 bytes) () 12/05/2007 postreply 15:34:38

• 他們還是能引用 Alternative Chargeability 的 -giant_hippo- ♂ (226 bytes) () 12/05/2007 postreply 18:41:20

• 回複：他們還是能引用 Alternative Chargeability 的 -pjiang- ♀ (157 bytes) () 12/05/2007 postreply 19:08:58

• Check "9 FAM 42.12 Notes" -giant_hippo- ♂ (891 bytes) () 12/05/2007 postreply 19:35:28

• 謝過 - 回複：Check "9 FAM 42.12 Notes" -pjiang- ♀ (0 bytes) () 12/05/2007 postreply 19:51:34

• 回複：Country of chargeability may not apply - 回複：Is my Visa number -sdfsdfsdff- ♀ (583 bytes) () 12/06/2007 postreply 10:40:19