Well so you can follow the instructions above its probably easiest to download it to your PC and then copy it over to your N900 in Mass Storage mode. Then follow the edited version of the instructions. Ignore the second block, that (as you can probably tell) just performs a search looking for the file but we will already know where it is.

You can download it straight to the N900 with the web browser, but its hard explaining where to save it from there as the "root" in the web browser is actually named whatever you called your N900, so its rather confusing.

Also bear in mind that when PR1.2 comes out it is almost guaranteed to wipe Equaliser with an updated version of the normal renderer. You may then have to download an updated version that is compatible with the new firmware.