Zip file does not transfer correctly

I have a specific example where I use SmartFTP to upload a .zip file, and it is uploaded wrong. It can be downloaded and there are nearly 720+ byte-level differences. Using the same machines with IE's built in FTP client works. I have tried the latest retail build as well as the dev build listed in this forum.

My machine is W2K/SP4 w/256MB of RAM; one of the servers we tested was a Red Hat 7.3. We attempted this with another server as well, and the corruption occurred in both cases. I have not tested this on multiple client machines yet, but again other FTP clients work on my machine.

I have test files that fail 100% of the time, as well as a binary difference file. The data contained in the test files is quite sensitive, so I will only forward them to someone in the support department, if requested.

Resolving host name ftp.*******.com...
Connecting to (ftp.*******.com) -> IP: 2**.1**.1**.* PORT: 21
Connected to (ftp.*******.com) -> Time = 20ms
Socket connected waiting for login sequence.
220 ProFTPD 1.2.4 Server ready.
USER ******* // obfuscated by me
331 Password required for ********.
PASS (hidden)
230 User sawtooth logged in.
SYST
215 UNIX Type: L8
FEAT
500 FEAT not understood.
REST 100
350 Restarting at 100. Send STORE or RETRIEVE to initiate transfer.
REST 0
350 Restarting at 0. Send STORE or RETRIEVE to initiate transfer.
PWD
257 "/" is current directory.
TYPE A
200 Type set to A.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,111).
Opening data connection IP: 2**,1**,1**,*,218,111 PORT: 55919.
LIST -aL
150 Opening ASCII mode data connection for file list
505 bytes received successfully. (505 B/s) (00:00:01).
226 Transfer complete.
CWD /public_html
250 CWD command successful.
PWD
257 "/public_html" is current directory.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,112).
Opening data connection IP: 2**,1**,1**,*,218,112 PORT: 55920.
LIST -aL
150 Opening ASCII mode data connection for file list
6836 bytes received successfully. (6.68 KB/s) (00:00:01).
226 Transfer complete.
CWD /public_html/download
250 CWD command successful.
PWD
257 "/public_html/download" is current directory.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,113).
Opening data connection IP: 2**,1**,1**,*,218,113 PORT: 55921.
LIST -aL
150 Opening ASCII mode data connection for file list
309 bytes received successfully. (309 B/s) (00:00:01).
226 Transfer complete.
CWD /public_html/download/releases
250 CWD command successful.
PWD
257 "/public_html/download/releases" is current directory.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,114).
Opening data connection IP: 2**,1**,1**,*,218,114 PORT: 55922.
LIST -aL
150 Opening ASCII mode data connection for file list
2734 bytes received successfully. (2.67 KB/s) (00:00:01).
226 Transfer complete.
CWD /public_html/download/releases/cbchb3
250 CWD command successful.
PWD
257 "/public_html/download/releases/cbchb3" is current directory.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,115).
Opening data connection IP: 2**,1**,1**,*,218,115 PORT: 55923.
LIST -aL
150 Opening ASCII mode data connection for file list
252 bytes received successfully. (252 B/s) (00:00:01).
226 Transfer complete.
TYPE I
200 Type set to I.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,116).
Opening data connection IP: 2**,1**,1**,*,218,116 PORT: 55924.
STOR CBCHB3a.zip
150 Opening BINARY mode data connection for CBCHB3a.zip
4530911 bytes sent successfully. (210.70 KB/s) (00:00:21).
226 Transfer complete.
TYPE A
200 Type set to A.
PASV
227 Entering Passive Mode (2**,1**,1**,*,218,118).
Opening data connection IP: 2**,1**,1**,*,218,118 PORT: 55926.
LIST -aL
150 Opening ASCII mode data connection for file list
252 bytes received successfully. (252 B/s) (00:00:01).
226 Transfer complete.

+- System -----------------------------

Microsoft Windows 2000 Professional
Service Pack 4 (Build 2195)

CPU Speed : 868 MHz
Total Memory : 260528 KB
Free Memory : 16280 KB

+- SmartFTP ---------------------------

Version : 1.0.978.12
Time Stamp : 2003-08-28 03:09:26

+- Application DLL --------------------

controls.dll : 1.6.978.12
ftpapi.dll : 2.0.978.12
language.dll : 1.0.978.12
reseng.dll : 1.3.978.12
smarthook.dll : 1.0.2.1

+- System DLL -------------------------

shell32.dll : 5.00.3700.6705
shlwapi.dll : 6.00.2800.1226
comctl32.dll : 5.81
riched20.dll : 5.30.23.1215
schannel.dll : 5.00.2195.6705

+- Internet Explorer ------------------

Version : 6.0.2800.1106

+- Winsock ----------------------------

Winsock : 2.2