http://bugs.winehq.org/show_bug.cgi?id=3084
------- Additional Comments From crazyshoter@gmail.com 2006-25-10 15:45 ------- I found the solution :
wine SteamTmp.exe SelfUpdate "C:\Program Files\Steam\Steam.exe" 14
Steam will resume the update and it will work. Remember : NEVER minimize any Steam's window ! Just close it.