Hi Scott,
Sorry for the delay in getting back to you. I have tested this issue with some long text and could find it to be working fine. I compared the text in the PDF table cell with MSWord table cell.There is no difference in the alignment. It seems to be the behaviour of the right alignment in table cells.
Here is a screen shot for your reference.
rightalign.gif
It can be noticed from the screen shot, that the text in the cells are right aligned and they do not adjust the space between the words as in case of "left justify".
Here is a sample for your reference.
textalignment.zip
Please take a look into it and let me know if you have any other queries.
Regards,
Dhivya.