If they are in separate textboxes, then just set the Format property of each
textbox. You won't be able to simply set if for Currency, because that will
pick up the Currency settings from the Regional Settings in Control Panel.
Instead, you'll have to define your own format.
If they are all in one textbox, you'll need to do the same thing as
mentioned above with one more detail. You'll need a field to indicate what
the currency is, you'll then need to programmatically change the format of
the textbox based on the value of the currency type field. This could be
done in the Format event of the report's section that the textbox is in.
Sample Formats:
$0.00
¥0 (typed as Alt+0165 then 0)