Hi mortem
Yes you do.
The “pointers” are the only thing the recycle bin contains. The files you delete using windows are not actually deleted. They are removed from view to the user but they remain exactly where they were. Windows then makes a pointer in the recycle bin to show the user the deleted file. If the user chooses to permanently delete the file the pointer is simply removed from the recycle bin by windows.
If you want to securely delete and overwrite the files in the recycle bin using Eraser then right click the recycle bin and choose “Erase Recycle Bin”. Eraser will then use the pointers that windows created to find the actual file on the disk. The area where the actual file is will be overwritten along with the pointer.
Mortem, there is nothing to worry about. Eraser will overwrite everything in the recycle bin if you tell it to do so. If you are in any doubt that you have missed a file for whatever reason perform a full free space wipe. However I suggest you choose the single random pass overwrite option as some of the other options may take an awfully long time, also they are probably a little overkill for most peoples needs.
You really don’t need any other deletion software other than Eraser, it is the best after all !