The code will place a textarea after every 5 records (per your modulus equation). If you are returning 10 records, there will be 5 records, then a textarea, then five records, then a textarea. If you are returning only 9 records, only one textarea will be placed. If you do not want more than one textarea, then you can modify the conditional to include "AND testrec.Currentrow eq 5" so that a textarea will ONLY be placed after the fifth record, and no more.
If anyone knows of a website that can offer ColdFusion help that isn't controlled by neurotic, pedantic jerks* (stackoverflow.com), please PM me with a link.
* The neurotic, pedantic jerks are not the owners; just the people who are in control of the "popularity contest".