Newbie Q: Designer V2.0

Hi All,

I've designed my UI with Designer V2.0, but found that the compilation could not pass for Qtopia application development(qtopia-sdk-1.5.0-3). 
However, if I turned back to use Designer V1.1, all are OK. I noticed that the Designer V1.1 are encapsulated within qtopia-sdk-1.5.0-3.

My Qs are:  
1) The compatibilitiy between Designer V2.0 and V1.1?
2) Can the Designer V2.0 support my Qtopia developement under qtopia-sdk-1.5.0-3 ? Especialy its new  *.ui.h function? 

I am looking forward to hearing from your kind answer, thanks a lot !

Kind regards,
FeiFei