" I do have 128 bit WEP maybe that's the cause of the low rate"
Re-read my initial post response. While the 2624 is affected by WEP, it won't affect it that much. What is your environment? Number of obstructions. signal strength and quality?
You'll never see anything close to 800 KBps on a SOHO AP. Even the enterprise AP's top out at around 750+ but you should be getting better than 1.6 Mbps, or 200 KBps, with our without WEP. THis all assuming your association from client to AP is strong, and devoid of any heavy inteference. You might try playing with the frequency base, Channel. Firmware as well, as I have mentioned.