lokhor: On the site it says:
If your phone came pre-installed with Swype
DO NOT download this beta (it won't work)
Also I have installed Swype on my SGS from the beta after uninstalling the preinstalled version and had massive lag issues with it.
Lol must have missed it. Ah well have got it working on my phone with no problems. I backed up the pre-installed version so if anything goes wrong I can easily install it back if I have any problems.