Can't update Virtua Tennis 4 through GFWL problem

[jcd.raider]

I just bought Virtua Tennis 4, downloaded(installed) it on Steam.When the game started firts time, it signed in to GFWL asked me for the key which I entered, that went fine.Then GFWL found an update for the game and it said that I should close the game and the update will start.After I closed the game update started but it fail to finish with the message "...Unable to write to the specified folder...Steam\steamapps\common\Virtua Tennis 4\it\.".I tried to start the game again, again GFWL found an update, when i close the game and update starts, i get the same message.I found the files update downloaded and tried to start the update manually.Same thing and same error message appears.I downloaded update 1.1 for Virtua Tennis 4 then, but wen I start that it says the game is not installed.At one occasion, when GFWL found the update in game it failed to downnload it, but the main problem is the error message that it can't write in that sub folder in game folder.I also tried to extract the files from Media1.cab from te update and put them in the game folder,but that did nothing(and those files don't exist in the game folder),same thing happens.So i can't update the game and that's what's needed to play online and for the proper saving of the achievements and such.I can start the game in offline mode and play, not signed in to GFWL, but that's not good, because that way I can't save the game properly and online multiplayer can't work like that.So if anyone has any idea how to complete this update, please help me.

[jcd.raider]

Here's the log file from the update:

Launching Title Update: "F:\Backup\Igre 2\Download\Virtua Tennis 4\temp\setup.exe" /selflaunch
Launching: F:\Backup\Igre 2\Download\Virtua Tennis 4\temp\TitleUpdate.msi ACTION=INSTALL REINSTALLMODE=amus LAUNCHEDVIASETUP=1 APPLICATIONROOTDIRECTORY="K:\Igre 3\Steam\steamapps\common\Virtua Tennis 4" TRANSFORMS=:Instance1 MSINEWINSTANCE=1
Error installing MSI at F:\Backup\Igre 2\Download\Virtua Tennis 4\temp\TitleUpdate.msi HR:0x80070643
Path: F:\Backup\Igre 2\Download\Virtua Tennis 4\temp\TitleUpdate.msi
Args: ACTION=INSTALL LAUNCHEDVIASETUP=1 APPLICATIONROOTDIRECTORY="Ignore" ABORTLOGPATH="C:\Users\Milan\AppData\Local\Microsoft\GFWLive\Install\Logs\titleupdate.log"
RelaunchFromCmdLine:
RelaunchFromCmdLine:
RelaunchFromMSI: Launcher.exe
InstallFolderFromCmdLine:
InstallFolderFromMSI:
InstallFolderFromRegkey: K:\Igre 3\Steam\steamapps\common\Virtua Tennis 4\
OriginalProductCode:
InstallFolderRegkeyProp: HKEY_LOCAL_MACHINE\SOFTWARE\Sega\Virtua Tennis 4
Failed

[jcd.raider]

just to add that this error log is from when I manually started the update form the folder i copied the update files to,but the error message is the same. Found this solution http://forums.guru3d.com/showthread.php?t=359506 , but it doesn't work for me

[jcd.raider]

Solution from this link works after all. I just figured out correct filenames for the files, backed up and overwritten the originals and everything works now including the online mode.So if anyone has the same problem, solution form the above link works.