Script to display File name in a directory and not sub-directories

I am trying to write a simple Korn Shell script that displays the file name of a csv file. I don't want it to display any csv files name in sub-directories that are under the directory that has the csv file name I want to display

My script name is called test_datafilename.ksh It contains the following

#!/usr/bin/ksh
DIR=/appl/pub/downloads/hrdata/data/Legacy/CombinedFile
FILE=`find $DIR -name "*.csv" |awk -F/ '{print $NF}'`
if [ -f $DIR/$FILE ]
then
print "$FILE was found"
else
print "Nothing Found"

fi

The file name that is located in the Directory is CombinedOriginationwithUpdates_04-2012.csv
and there is a file named
CombinedOriginationwithUpdates_02-2012.csv
in the sub-directory that I do not want to display.

However, when I run the script on my UNIX system it always returns the Else statement from my IF/Then/Else above

/scripts>./test_datafilename.ksh
Nothing Found

What am I doing wrong?

How about a simple

(note that FILE will be the full path - not just the basename; if you want just that you can chain it with an "xargs basename")

Thanks that did the trick. Sometimes you get so engrossed in what you are doing you don't see the obvious answer.