What you should do is go to
http://forum.xda-developers.com/, scroll down to the HTC Kaiser thread, click on the bootom of the 4 different links which is rom development, read through the stickys on how to flash your Kaiser, unlocking it, installing hard spl, flashing your rom, etc. There are plenty of different roms to choose from and flashing is so simple. I guarantee you, once you flash your first rom, you'll be addicted. XDA sometimes goes down because they need a better server, so if it is, just keep trying periodically.