I had a similar experience. I wanted to fix the scanner dialog in swriter. I couldn't set the dpi value for my scanner. I fixed it and set an email to the most appropriate core developers listed on the OO developers site. I received an answer a month later or so, asking me to sign an agreement with SUN. At the same time I received an email from a developer who encouraged me to continue. I sent by fax the agreement and fixed several other things. The guy contacted me several times asking if I had received a response from SUN. I think I received it three months later. Meanwhile I had tried to scan directly from the dialog (which can only configure the scanner, scanning is started from another entry in the Insert image menu). The dialog doesn't return a value. How can I change it? It is impossible, the function prototypes are kept in a jar file. How long does it take to raise the interest of a core developer on this issue I don't know, but I think 6 months at least.
Then OO 3.0 was out and I had to start it all over.
But the code is really a mess: there are sections with comments in German tagged with:
**********Better left alone********
and the like.