Open WTK 2.5.1
Open Sign Midlet Utilities
Make a new key pair
Send CSR to verisign
Obtain Certificate from verisign
Save it into a text file with .cer extension
I install portecle.
Then load into it a keystore with keypair that make csr..
load into keypair a ca response.
save keystore and use it to sign midlet.
I install into nokia n73.
Install successful but the http permission is asked anyway.