I have updated the old 1.7.3 client, it now works with 1.8 & 1.8.1. Download link is below, happy hacking!
How to install :
1 . Download the minecraft.jar here : http://fileice.net/download.php?file=116112. Replace the original minecraft.jar with the downloaded one.
3. Start Minecraft
4. Enjoy
DOWNLOAD : http://fileice.net/download.php?file=11611