Mine

caption = Android Installer
text = Choose options for installation or choose defaults
aftertext = For more info, visit:\\nhttp://androidhtc.sf.net

begin item
    name = message1
    type = msgbox | hidden | auto
    label = Welcome
    icaption = Welcome to the Android Installer.\nPlease use caution as you can \nwipe your phone!
end

##sys picker

begin item
    name = sysloc
    type = radiobutton | defaultfromenv | hiddenopt
    label = Sys on SDCard Partition
    default = 0
end

##end sys picker

##data picker


begin item
    name = dataloc
    type = radiobutton | defaultfromenv | hiddenopt
    label = Data on SDCard Partition
    default = 0
end


##end data picker

br

begin item
    name = install
    type = ask | chain | hiddenopt
    label = Install System
    icaption = This will wipe your existing system!\nAre you sure?
end

begin item
	name = wipedataforsys
	type = var | ask | chain | hidden
	label = Wipe data when installing
	icaption = Would you like to clear data too?\n(Suggested)
	default = yes
end

begin item
	name = realinstall
	type = hidden | chain
	label = Actually install stuff
	command = /bin/instscripts/installsys
end

begin item
    name = fixperms
#    type = hidden
    label = Fix Permissions
    command = /bin/instscripts/fixperms
end

begin item
    name = cleardalvik
#    type = chain
    label = Clear Dalvik Cache
    command = /bin/instscripts/cleardalvik
end

begin item
    name = update
    type = ask | hiddenopt
    label = Install Update
    icaption = This will extract androidupdate.tar\nThis may overwrite files!\nAre you sure?
    command = /bin/instscripts/updatesys
end

begin item
    name = backupdata
    type = ask
    label = Backup /data
    icaption = This will wipe out any old backup\nin /sdcard/andboot/databackup.img
    command = /bin/instscripts/backupdata
end

begin item
    name = restoredata
    type = ask | hiddenopt
    label = Restore /data
    icaption = This will overwrite /data with \n/sdcard/andboot/databackup.img
    command = /bin/instscripts/restoredata
end

begin item
    name = wipedata
    type = ask
    label = Wipe /data
    icaption = Really clear data?This will \nclear all personal settings
    command = /bin/instscripts/wipedata
end

begin item
    name = fixapps
    type = ask | hiddenopt
    label = Reinstall app_s
    icaption = Reinstall app_s from androidinstall.tar?
    command = /bin/instscripts/installapps
end

begin item
    name = recovery
    type = chain
    label = Start Recovery Mode
    command = /bin/instscripts/recoverystart
end

begin item
    name = recoveryprompt
    type = msgbox | hidden | chain
    label = ask when recovery is done
    icaption = Press OK when finished with \nrecovery mode
end

begin item
    name = recoverydone
    type = hidden
    label = Stop Recovery Mode
    command = /bin/instscripts/recoverystop
end

begin item
    name = QUIT
    label = Quit
    command = export | /bin/grep "RM_" > /sdcard/andboot/exports
end