Wirelessly posted (htc Pocket PC: Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 8.12; MSIEMobile6.0) Sprint T7380)
If they are .cab files then just download them to your device and click on them using File Explorer. If they are .exe files you have to download them to your PC then sync your device to your PC and then while synced click on the .exe file to install. Easy peesy.