You will need two utilities, one on Word 2000 and an updated one for the most recent versions:

• Moving (Sharing) Customizations in Microsoft Word
• for Word 2000) AutoCorrect Utility Manager
• AutoCorrect2007.zip from Jay Freedman's The Macro Zone or AutoCorrect Backup Manager Utility by Greg Maxey, MVP

These utilities create a Word document that holds the AutoCorrect entries as text in a table. Then they use the utility to bring it into another Word installation or restore it to the original one.