BouncyCastle installation problems

I'm trying to add BouncyCastle as a security provider on Windows XP Pro so I can use it to add some certs to an Android application per the instructions here. Unfortunately I can't get it to add the provider.

I've:

1. Downloaded the provider to C:\Program Files\Java\jre6\lib\ext\.
2. Added C:\Program Files\Java\jre6\lib\ext\bcprov-jdk16-146.jar to %CLASSPATH%.
3. Added security.provider.7=org.bouncycastle.jce.provider.BouncyCastleProvider to java.security (7 being the next int in the order).

When I run:

keytool -import -v -trustcacerts -alias 0 -file mycert.crt -keystore mystore.bks -storetype BKS -providerName org.bouncycastle.jce.provider.BouncyCastleProvider -storepass mypassword 

I get the following error message:

keytool error: java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.BouncyCastleProvider

I've also tried adding it dynamically:

import java.security.Provider;
import java.security.Security;
import java.util.Enumeration;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

public class BouncyCastleMain {

    public static void main(String[] args) throws Exception {
        Security.addProvider(new BouncyCastleProvider()); // add it
        try { // list them out
            Provider p[] = Security.getProviders();
            for (int i = 0; i < p.length; i++) {
                System.out.println(p[i]);
                for (Enumeration e = p[i].keys(); e.hasMoreElements();)
                    System.out.println("\t" + e.nextElement());
            }
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

At first I got an access error when compiling the java class, but changed it to a warning per the suggestion here. Now when I run the code it shows BouncyCastle in the list of providers but it doesn't stick around after the program is done.

I'm sure it must be doable, but I'm stymied over how to get this guy installed long enough to run keytool using it. Is it possible to run keytool via a java API, or could there be some step I've missed that will make the provider stick around?

Thanks!