How can I set these registry settings on win XP?

Path: HKEY_CURRENT_USERSoftwareMicrosoftWindows
CurrentVersionScreensaversBubbles

- SpanMultiMon [DWORD] 0/1
Enables/disables multiple monitor spanning support.

Enable this to have one set of bubbles travel across
screens. Disable this to have bubbles on each (and possibly
different configurations)

- SphereDensity [DWORD] int
Self explainatory

- Radius [DWORD] int
Self explainatory

- TurbulenceNumOctaves [DWORD] int
Self explainatory

- TurbulenceSpeed [DWORD] int
Self explainatory

- TurbulenceForce [DWORD] int
Self explainatory

- ShowBubbles [DWORD] 0/1
Enable/Disable showing of background for bubbles

- MaterialGlass [DWORD] 0/1
Enable/Disable translucent bubble effects

- ShowShadows [DWORD] 0/1
Self explainatory

- AllScreensSame [DWORD] 0/1
Enable/Disable the sharing of bubbles configuration across
screens (use global settings).

NOTE: To specify settings for different screens,
create a key (e.g. "SCREEN 1") and put your settings (above)
in this folder. Global settings are put directly in the
parent key.