Download 1.0.3b-10485 client from any sources, or from this links:

Download patched files from here: Extract downloaded files and replace with game files.
Create a link to Desktop.
Open with right-click Properties.
Add to the Target path this parameters: -launch -auroraaddress
For example you have F:\Games\D3\Diablo III.exe path,
next this must look like: F:\Games\D3\Diablo III.exe -launch -auroraaddress
Create account on this page.