patch is broken:

after the splash screen. the lineage 2 client completely fails to load and goes to critical error message box.

<font class="small">Code:<hr /><pre> OS: Windows XP 5.1 (Build: 2600)
CPU: AuthenticAMD PentiumPro-class processor @ 1997 MHz with 767MB RAM
Video: RADEON 9550 (6599)

Bad name index 6696/1091

History: ULinkerLoad&lt;&lt;FName &lt;- (LinkerLoad Transient.LinkerLoad8 32936375)) &lt;- FObjectImport&lt;&lt; &lt;- LoadImportMap &lt;- ULinkerLoad::Load &lt;- ULinkerLoad::ULinkerLoad &lt;- UObject::GetPackageLinker &lt;- UObject::StaticLoadObject &lt;- (Engine.Texture l2ui_ch3.Pledge.war_single NULL) &lt;- UCanvas::UCanvas &lt;- UViewport::UViewport &lt;- UWindowsClient::NewViewport &lt;- UGameEngine::Init &lt;- InitEngine

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Check you file system.
Try Check Files option in updater.

Looks like one of your texture files is corrupted (the one containing 1-way war icon)