There are two similar looking TI Connect software products, but only “TI-CONNECT SOFTWARE” allows the transfer of TI89 apps. Download it here: TI-CONNECT SOFTWARE DOWNLOAD
Note its yellow-blue colored logo.
However, the so called “TI CONNECT CE SOFTWARE” allows file transfers to the TI-84 calculator only.
Read more about this TI84 software on TIs website at : TI-CONNECT CE SOFTWARE
Note its blue-green colored logo.
Read more about TI Connect Software here: http://www.ti89.com/ticonnect.php