2 ftps in script, second won't go to output file

I'm running this on both solaris and hp boxes, ftping from windows, then ftping to an aix machine.
If I run the ftpReportFile by itself, I get info in the ftp_rpt_log. If I run just the 2 ftps together, I also get output. However, if I run the entire shell script, I don't get output from ftpReportFile. And ftpReportFile is failing saying it can't find the file. Please help.

ftpEngine() {
ftp -inv ${FTP_SERVER} << EOF_FTP >> ${FTP_LOG}
user ${FTP_USER} ${FTP_PSWD}
cd ${FTP_DIR1}
cd ${FTP_dir2}
bin
mget ${FTP_FILE}
quit
EOF_FTP
mv engine.tar.Z $HOME/"$CURRENT_VERSION"/"$test_type"/engine.tar.Z
}

ftpReportFile() {
ftp -inv ${FTP_REPORT_SERVER} << EOF_FTP > ${FTP_RPT_LOG} 2>&1
user ${FTP_USER} ${FTP_REPORT_PSWD}
cd ${FTP_REPORT_DIR}
pwd
bin
put ${REPORT_FILE}
quit
EOF_FTP
}

error when I do get output:
Connected to xxxx.
220 xxxx FTP server (Version 4.1 Thu Jun 21 14:19:12 CDT 2007) ready.
331 Password required for qainst01.
230-Last unsuccessful login: Tue Nov 13 15:10:58 EST 2007 on /dev/pts/0 from xxxxx
230-Last login: Thu Nov 15 12:58:03 EST 2007 on ftp from xxxx
230 User qainst01 logged in.
250 CWD command successful.
257 "/home/qainst01/50" is current directory.
200 Type set to I.
200 PORT command successful.
553 /export/home/qainst01/50/SUN_50_Report.txt: A file or directory in the path name does not exist.
221 Goodbye.

$ pwd
/export/home/qainst01/50
$ ls SUN*
SUN_50.sh                   SUN_50_log.txt              SUN_50_previous_log.txt     SUN_50_Previous_Report.txt  SUN_50_Report.txt

Post result of

ls -ld /export/home/qainst01/50/SUN_50_Report.txt

$ ls -ld /export/home/qainst01/50/SUN_50_Report.txt
-rw-r--r--   1 qainst01 other        685 Nov 15 12:36 /export/home/qainst01/50/SUN_50_Report.txt

Instead of listing the full path to the file in $REPORT_FILE you may want to

REPORT_FILE=SUN_50_Report.txt
LOCAL_DIR=/export/home/qainst01/50

ftpReportFile() {
ftp -inv ${FTP_REPORT_SERVER} << EOF_FTP > ${FTP_RPT_LOG} 2>&1
user ${FTP_USER} ${FTP_REPORT_PSWD}
cd ${FTP_REPORT_DIR}
pwd
bin
lcd ${LOCAL_DIR}
put ${REPORT_FILE}
quit
EOF_FTP
}

The reason I had the whole path is to make the script as maintainable as possible. I have to use it in like 16 different places. Here's the declarations.

PLATFORM="SUN"
CURRENT_VERSION="50"
VERSION_FOLDER="TEMP_ZOOROPIA"
LOG_FILE="/$HOME/"$CURRENT_VERSION"/"$PLATFORM"_"$CURRENT_VERSION"_log.txt"
PREVIOUS_LOG_FILE="/$HOME/"$CURRENT_VERSION"/"$PLATFORM"_"$CURRENT_VERSION"_previous_log.txt"
#REPORT_FILE="/$HOME/"$CURRENT_VERSION"/"$PLATFORM"_"$CURRENT_VERSION"_Report.txt"
REPORT_FILE="$HOME/"$CURRENT_VERSION"/"$PLATFORM"_"$CURRENT_VERSION"_Report.txt"
PREVIOUS_REPORT_FILE="/$HOME/"$CURRENT_VERSION"/"$PLATFORM"_"$CURRENT_VERSION"_Previous_Report.txt"
DAT_FILE="SUNpdfmg.dat"
DBCS_DAT_FILE="SUNafpengmg.dat"

I'll be handing this off to another group that doesn't do any scripting in Unix and they need to just change the first few values and run it. If you know how to make it less confusing, let me know.