Solution : https://service.sap.com/sap/support/notes/451929 (SAP Service marketplace login required)
Key words : 
0 => internet sales => installation => sap internet sales implementation, /swcenter-main => sap crm => sap crm 3, terms isa sp06 support package solution, crm-inst => mysap crm => sap crm 3, /instguides => mysap crm => sap crm 3, 0 => internet sales => installation deploy jco, sap internet sales release 3, symptom upgrading internet sales 3, internet sales jsp ui, xml-bugfix für inqmy 4
Related Notes : 
       
| 459140 | Logon in SAP Internet Sales B2B scenario not possible | 
| 456932 | Conntecting to CRM using Load Balancing | 
| 453087 | 'deploying' JCO to the InQmy environment | 
| 450325 | Creating encrypted password in Internet Sales 3.0 | 
| 445573 | XML bugfix for inqmy 4.2.7 available on service.sap.com | 
| 442804 | For 3.0 IPC JSP User interface available as of SP04 | 
| 442332 | SAPKU30006: Support Package 6 for EBP 3.0/CRM 3.0 | 
| 435556 | Installation of the InqMy IIS plug-in |