This hotfix can be downloaded directly from the SFDC Customer Portal Web UI.
1) Login to the SFDC Customer Portal Web UI.
2) Go to the Customer Portal Home, Click on the Downloads drop down menu -->Select Hotfixes
3) The Hotfix is stored under Available Downloads/ActiveFulfillment/ActiveFulfillment Subscriber Inventory/1.0.0/hotfix-01

Instructions on how to apply the hotfix are provided in the TIB_fsi_1.0.0_HF-001_readme.txt file.
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Closed Issues in 1.0.0_HF-001 (This Release)

INV-496 
When using the updateItem web service to create the same relationship for an 
item with different child items or when using the GUI to create a second 
relationship for an item with the same relationshipname, a "Relationship already 
exists" error occurred.

INV-495
When submiting a completeBatch (rollback) request, an error occurred. 

TIBCO Fulfillment Subscriber Inventory 1.0.0 Hotfix01 is available