Depends on what is the problem. Your log did not upload, a CBS.log is a huge file and should be read in notepad. If you generated this log due to running sfc /scannow and your only interested in what file it could not fix then do the following:
Open a "elevated command prompt" then right click >run as administrator
Note: Open a elevated command prompt in Vista: Start> search>type cmd.exe, right click on the result and select Run as Administrator
Copy and paste the command below and press enter (this will be entered right after C:\Windows\system32> (which the cursor should be blinking right after this line)
findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt"
This will place a sfcdetails.txt file on your desktop with only the SFC scan result details from the CBS.log in it.
Now you can upload the text file
Exactly what is the problem??