You really have to read the claims to understand what the patent covers instead of trying to understand it from what is infringing. This patent has pretty easy-to-read claims. It essentially covers an encryption method where the encryption/decryption keys are updated (edit to correct my misreading) if a certain number of bytes are detected to have been exchanged. It's kind of a key-synchronization method.
US patent law counts as infringement making, selling, or using anything covered by the claims. NewEgg uses SSL with RC4 to secure their connections, the combination of which TQP contends, perform the steps covered by their claims.
