pro faster than windows xp home?
How do i tell whether Windows XP pro that im using is 32 bit or 64 bit

You can get XP Pro and Vista in either 32-bit or 64-bit versions.

XP Pro has more connectivity features then XP Home. You can connect XP Pro to a domain. XP Home can only join peer-to-peer networks.

Either one (XP home or Pro) will be faster if you have a higher-end processor and/or more memory.