You do not need to virginize or re-do your softmod for 002 errors. If you are using a backup loader prior to NeoGammaR7 there will be a setting labelled 002 fix that you should change to ON.
If you wish to update your softmod: download the softmod pack from the link, use WinRar to extract the folder and copy the folder contents to a 2GB SD card not SDHC, best is 2GB SanDisk, formatted as FAT32 on your PC.
Skip the HBC install part of Step 1, you can back up your NAND as described in Step 2, but it will have less value as you will only be able to install bootmii as boot2 per your Wiis purchase date. As you previously softmodded your 4.1 Wii, just do Step 3D and go onto Step 5.