Importing DXF File Into Staad Pro 2007

How Can I Import DXF File Stad pro. 2007 Correctly ...
I Save it as DXF Files to import in stad pro
I tried but The Result is not right..

i've a 3D Drawings by Solid work 2008 & Autocad 2007

please downlad the files:

http://www.2shared.com/file/4630592/77599a77/Autocad.html


http://www.2shared.com/file/4630593/5eaae1/Solid_Work.html

Thanks