Installation Intranet - Sharepoint difficile

Bonjour,

Sur un serveur SBS2003 SP2,

il m'est impossible de réinstaller correctement le module Inranet contenant
Sharepoint sans avoir un message d'erreur disant que le service pack 4 de
SQL serveur 2000 n'est pas installé.
Or il sagit d'un SBS 2003 premium avec SQL 2005 server std.

le fichier errorlog.txt indique le résultat suivant:

0/19/08,18:47:05] Intranet: [2] CClientX::InitializeModule found no STS, but
detected that SBS installed STS.
[10/19/08,18:47:20] IUAssistant: [2]
ISetupManager::GetGlobalCustomProperty() failed in
CPageBase::GetGlobalProperty(): GUID =
{F205AE18-9D39-4E3C-A4BA-12FBA060ED91}
[10/19/08,18:47:26] Licences: [2] Copying sbsmor.chm failed (error = 5).
Check for the file in %winroot%\help directory.
[10/19/08,18:47:26] Licences: [2] Copying sbslic.chm failed (error = 5).
Check for the file in %winroot%\help directory.
[10/19/08,18:47:26] Licences: [2] Copying sbsart.chm failed (error = 5).
Check for the file in %winroot%\help directory.
[10/19/08,18:47:26] Licences: [2] Copying sbsshared.chm failed (error = 5).
Check for the file in %winroot%\help directory.
[10/19/08,18:47:29] Licences: [2] FindLinkByTarget failed to find the
licensing link with error [-2147024894].
[10/19/08,18:47:29] Licences: [2] UpdateLinkPath failed to update the
licensing link with error [-2147024893].
[10/19/08,18:47:33] IUAssistant: [2]
ISetupManager::GetGlobalCustomProperty() failed in
CPageBase::GetGlobalProperty(): GUID =
{FBCCE6F3-9E2D-464D-A4E7-12FBFD515395}
[10/19/08,18:47:33] IUAssistant: [2]
ISetupManager::GetGlobalCustomProperty() failed in
CPageBase::GetGlobalProperty(): GUID =
{FBCCE6F3-9E2D-464D-A4E7-12FBFD515395}
[10/19/08,18:47:49] IUAssistant: [2]
ISetupManager::GetGlobalCustomProperty() failed in
CPageBase::GetGlobalProperty(): GUID =
{FBCCE6F3-9E2D-464D-A4E7-12FBFD515395}
[10/19/08,18:47:52] IUAssistant: [2]
ISetupManager::GetGlobalCustomProperty() failed in
CPageBase::GetGlobalProperty(): GUID =
{FBCCE6F3-9E2D-464D-A4E7-12FBFD515395}
[10/19/08,18:48:10] IUAssistant: [2]
ISetupManager::GetGlobalCustomProperty() failed in
CPageBase::GetGlobalProperty(): GUID =
{F205AE18-9D39-4E3C-A4BA-12FBA060ED91}
[10/19/08,18:48:27] Configurer le serveur: [2] Admin: Couldn't get group
container for [LDAP://CN=Internet Users,OU=Security
Groups,OU=MyBusiness,DC=.........,DC=local]
[10/19/08,18:48:27] Configurer le serveur: [2] Admin: Couldn't get group
container for [LDAP://CN=Internet Users,OU=Security
Groups,OU=MyBusiness,DC=........,DC=local]
[10/19/08,18:48:27] Configurer le serveur: [2] Admin: Couldn't get group
container for [LDAP://CN=Internet Users,OU=Security
Groups,OU=MyBusiness,DC=..........,DC=local]
[10/19/08,18:48:28] Configurer le serveur: [2] Admin: Couldn't get group
container for [LDAP://CN=Internet Users,OU=Security
Groups,OU=MyBusiness,DC=........,DC=local]
[10/19/08,18:48:28] Intranet: [2]
CClientX::BIsSharepointSQLInstanceInstalled - Unable to start
MSSQL$Sharepoint service hr= 0x80070003.
[10/19/08,18:48:51] Intranet: [2] HrRegisterFaxRtExt failed in
CClientX::DoInstall hr= [80070057]
[10/19/08,18:48:53] Intranet: [2] HrDeleteMSDEShortCut failed in
CClientX::DoInstall setup continuable. hr= [80070002]
[10/19/08,18:49:29] Intranet: [2] Failed to grant db rights to sts worker
[10/19/08,18:49:29] Intranet: [2] Unable to Join the SharePoint
Administrators Group to the STS_WPG Group with error 0x80004005.
[10/19/08,18:49:51] Configurer le serveur: [2] An error occured when
upgrading MSDE to MSDE SP4 level. The return code is: 1602
[10/19/08,18:49:51] Configurer le serveur: [2] Error returned from
CSuiteHelpComponentRoot::UpgradeMSDESrvPackInstance().
[10/19/08,18:50:08] Configurer le serveur: [2] Failed while upgrading
SharePoint or Monitoring to SP4. The error code is: 80004005

Merci pour toute aide !!!