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That shouldn't be too hard, assuming you have a version of Inkscape which contains them. However, if you have such an older version, why don't you just use it? You can open it, and draw some random rectangle or text and apply the filter you want. Copy it and paste into a new document of your current version.
However, if you still want to install them, go to where you installed the old version, using your file manager. Find C:/...../inkscape/share/filters. Click on filters.svg to highlight it. Copy.
Is that Windows XP that you're using? I don't remember exactly how to find it, but it will be something like this. C:/username/AppData/Inkscape/filters and paste the filters.svg file there. ("username" is your name, or whatever name you gave to your computer)
Note that will bring ALL the filters from that version into your current version. If you want to bring only the filters in the ABC sub-menu, it will involve a little bit of work. Note that this should work. But there's probably a better way.
Open filters.svg (from the old version). Draw several rectangles or text objects, as many as there are filters in the ABC sub-menu. Apply 1 filter to each object. Copy those objects and paste into a new Inkscape document of the current version that you're using. Save that file as SVG. I don't think the name matters, as long as it's .svg on the end.
Now, save that file in C:/username/AppData/Inkscape/filters. That should work....
Maybe someone else knows a better way?
