Uninstall Start menu shortcut

[MB1]

Hi
Env Win 7 Nsis 3.08
I'm new about nsis.. i just succesfully create some simple NSIS scrpt to install my programs
The question is about start menu shortcut unistalling
i succesfully write code to let to installer to choose start menu folder
i put here the interested code

code:
XPStyle on

Page custom StartMenuGroupSelect "" ": Start Menu Folder"

UninstPage uninstConfirm

UninstPage instfiles



Function StartMenuGroupSelect

	Push $R1



	StartMenu::Select /checknoshortcuts "Don't create a start menu folder" /autoadd /lastused $R0 "MP3 Downloader"

	Pop $R1



	StrCmp $R1 "success" success

	StrCmp $R1 "cancel" done

		; error

		MessageBox MB_OK $R1

		StrCpy $R0 "MP3 Downloader" # use default

		Return

	success:

	Pop $R0



	done:

	Pop $R1

FunctionEnd

Section "Start Menu Shortcuts"

	# this part is only necessary if you used /checknoshortcuts

	StrCpy $R1 $R0 1

	StrCmp $R1 ">" skip



		CreateDirectory $SMPROGRAMS\$R0

		CreateShortcut $SMPROGRAMS\$R0\MP3_Dowmloader.lnk $INSTDIR\MP3_Downloader.bat

		CreateShortcut "$SMPROGRAMS\$R0\MP3 Updater.lnk" "$INSTDIR\Updater.bat"

		

	skip:

SectionEnd

the question is how to reference the directory $SMPROGRAMS\$R0
in the unistallal section ?

i tried

code:
Delete "$SMPROGRAMS\$R0\MP3_Dowmloader.lnk"

Delete "$SMPROGRAMS\$R0\MP3 Updater.lnk"

RMDir "$SMPROGRAMS\$R0"

but it does not function ..
i'm not using the modern interface..and if possible i do not want to use it..
Thanks in advance for the support