NSIS problem - application keeps overwriting registry data

Hi!
i'm new to nsis, only doing it for 3 days, and for starters i converted my Photoshop CS4, just for educational porposes, and b/c i don't want to reinstall it every time i reinstall windows. i have deepfreeze too, so all my apps are portabilised, and on drive D:\, but for now only with thinapp.
so, the problem is:
a have used the template provided here in the forums, and i have introduced 2 lines of code, here:

; --------------------------------------------------------------------------
; Apply portable registry key, delete existing key at same time
; --------------------------------------------------------------------------
IfFileExists "$DATADIR\${APP}.reg" 0 +2 ; only apply if a registry file exists
ExecWait 'regedit /s "$DATADIR\${APP}.reg"'

;NEW LINES=>
${registry::Write} "HKEY_CURRENT_USER\SOFTWARE\Adobe\Photoshop\11.0" "PlugInDirectory" "$PROGRAMDIR\Data\AddedPlugins\" "REG_SZ" $R0
${registry::Write} "HKEY_CURRENT_USER\SOFTWARE\Adobe\Photoshop\11.0" "SettingsFilePath" "$PROGRAMDIR\Data\Photoshop\Settings\" "REG_MULTI_SZ" $R0
;