Can't install Avast

[jimbobber]

So, i downloaded the setup file from the website, when i try to install avast it gives me the following error report:


26.05.2009 20:24:17 general: Started: 26.05.2009, 20:24:17
26.05.2009 20:24:17 system: Operating system: WindowsXP ver 5.1, build 2600, sp 3.0 [Service Pack 3]
26.05.2009 20:24:17 system: Memory: 81% load. Phys:99072/523500K free, Page:1552852/2065604K free, Virt:2071172/2097024K free
26.05.2009 20:24:17 system: Computer WinName: LONGPC
26.05.2009 20:24:17 system: Windows Net User: LONGPC\The Family
26.05.2009 20:24:17 general: Old version: ffffffff (-1)
26.05.2009 20:24:17 system: Using temp: C:\DOCUME~1\THEFAM~1\LOCALS~1\Temp\_av_inet.tm~a02896 (5626M free)
26.05.2009 20:24:17 internet: SYNCER: Type: use IE settings
26.05.2009 20:24:17 internet: SYNCER: Auth: another authentication, use WinInet
26.05.2009 20:24:17 general: Install check: Program folder does NOT exist in registry
26.05.2009 20:24:17 general: SGW32P::CheckIfInstalled set m_bAlreadyInstalled to 0
26.05.2009 20:24:18 general: progress thread start
26.05.2009 20:24:18 general: Destination: C:\DOCUME~1\THEFAM~1\LOCALS~1\Temp\_av_inet.tm~a02896
26.05.2009 20:24:18 general: Starting download: http://www.avast.com/go.php?verb=get-avast-home&type=cnet&langid=eng
26.05.2009 20:24:24 general: Download finished from server download642.avast.com, result: 0x20000004, server response: 501
26.05.2009 20:24:24 general: Stats download642.avast.com, server response: 536870916
26.05.2009 20:24:25 general: POST result: 0x20000006, server response: 404

Any help as to why it doesn't work would be much appreciated
Thanks,
James

[Lisandro]

26.05.2009 20:24:17 general: Install check: Program folder does NOT exist in registry

Did you install avast before? Did you used system restore after the installation to a previous time before installation?
I suggest an installation from the scratch:

1. Uninstall avast from Control Panel first.
2. Boot.
3. Download the latest version of Avast Uninstall and use it for complete uninstallation. If, for any reason, you can't run it, try booting in Safe Mode and doing it from there.
4. Boot.
5. Install again the latest avast! version.
6. Boot.
7. Check and post the results.