Which firmware for my linksys WAG54G router?

I had to restore my router to its factory defaults recently which lost all my changes. While fixing everything up I decided I might upgrade the firmware for the router. Its a linksys WAG54G - Wireless-G ADSL Gateway v1.2

the current firmware as stated in the admin area is 1.01.6

I managed to find the firmware page for the v1.2 of the router here - http://www-uk.linksys.com/servlet/Satellite?c=L_Download_C2&childpagename=UK%2FLayout&cid=1129319258422&packedargs=sku%3D1138744912994&pagename=Linksys%2FCommon%2FVisitorWrapper

however Im not sure which firmware applies to my router, annex A or B as it does not say on my router, or in the admin area (plus I lost the documentation)

I tried customer services (mess) and have sent off an email with no reply yet. So i was hoping somebody could tell me which one to go for??

Unless your telephone service is on an ISDN line, you need Annex A.