Oh, repeating data in IP is a bear with SharePoint.
You can promote the fields as "merged" - that gives you a list of items from your repeating field. You can't edit that data in the library, though, so hopefully none of the data you want to edit is in your repeating group.
If you are reading data - putting it back together may be a little challenging, because I think what happens is blanks are skipped. So if your repeating table looks like this:
| Item |
Amount |
| Basket |
$10 |
| Bunny Slippers |
|
| Chocolate Rabbits |
$13 |
Then your SharePoint column data will look like this:
| Item |
Amount |
Basket Bunny Slippers Chocolate Rabbits |
$10
$13 |
Might be a bit yucky, you know?
You want to test this tho - I think the last time I really looked at it was with ShP 2007 / IP 2007, so if you are on 2010, you may have different (better) behavior....