How to export from Import_export.module (Drupal 4.6) to import with Node_import.module (Drupal 4.7):
You can now export nodes from Drupal 4.6 with import_export.module from different types of nodes to Drupal 4.7 using node_import.module, especially tested from Flexinode in Drupal 4.6 to CCK in Drupal 4.7.

To be able to export properly you can choose the default values of delimiters after this patch, in the second page of the CSV export wizard.

Select only the fields which already exists in your updated Drupal 4.7

For: "Output format of the Taxonomy terms": Select: "Term names" (as default)
For: "Multiple-term delimiter": Choose: Pipe delimiter (|) (as default)
For: "Field Delimiter": Choose: Comma (,) (as default)
For: "Text delimiter": Choose: Quote (") (as default)

Leave Max. Field length empty if you really don't need it. (It trims the field size to the number of character)

Do a "Friendly Export" for a file export after you have tested the screen output with the "Export" button.

For details and the patch: http://drupal.org/node/83799

Any feedbacks will be helpful for further development.