Wirelessly posted (8800: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8310/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)

There are hundreds of posts on Empower Email in our Aftermarket Software section. It works well, seems the consensus is that the Pro version is best of the two Empower products.
BBSmart is another alternative HTML viewer. All work within the BlackBerry email message folder, noty as separate client.
Good luck.