AutoCAD Civil 3D :: Converting 32bit 2009 Drawing To 64bit 2011?

Since I'm so darn clever I decided I could "save as" a 2009C3d-32bit drawing to 2011C3D-64bit. This drawing was working just peachy for a while. There are no data links. The drawing contained 2009 surface and point groups. I imported some Pipe styles created in 2011. Created 800' of profile,and my pipe network. When I was closing the drawing I got a lot of errors wanting to know if I wanted to save changes to VBA-pipes. Seemed like a good idea at the time so I said Yes. This morning I opened the drawing and it's there but the surface from 2009 no longer has it's Definition data. The point group is gone, breaklines are gone. I needed to remove one lousy bad point out of my surface. The points in the drawing now have three copies and one has the elevation in the point description and you can't fix it. The 3 labels are all tied together and if you erase one they all disappear. I am going to wing it from here and get this puppy out of the office with a little old fashioned autocad. This is my question. Should I have just started a new drawing in 2011, clipped all my old line work and text from the 2009, imported the points and rebuilt my surface? Did I do something wrong and there was some way I should have been able to make this work? I was running 2009 and 2011 on my computer but had to remove 2009 last week. It no longer like livng with his better looking brother "2011" and I had to put him out. I have numerous small projects created in 2009 so this will happen again.