Blackberry 7290

I purchased the premium service thinking it would sync outlook on my personal computer with my blackberry just as two computers would sync over the internet. I found out that what I can do is view my appointments with the blackberries web browser. I am looking to be able to make appointments while mobile and not conflict with appointmments my wife makes back at my home office. Does any one out there know of a service that does this, I am not a big corperation but would love to use the functions of my blackberry's enterprise sync ability. I thought plaxo would work bur I am disappointed. Help?

the advertisement says its doable "Browse, dial and optionally save the freshest info to your phone. Plaxo keeps your phonebook up-to-date" but i havent found a way to do it yet. This is a major flaw in the plaxo system....if you want something that will auto sync from online to mobile phone then the only choice at this time is mightyphone.com. I used to have this service ...it works well but the online UI is kinda slow.