Adcenter Help

Should I copy my Adwords account blindly or do something different?

[aruns]

Am looking for a tutorial on Adcenter which explains key features and ideally compares with Adwords, to identify things I should do differently on Adcenter.

Some of the questions am trying to get answers to are

How does Broad, Phrase & Exact match work on Adcenter is it any different from Adwords?

How good is the Keyword Traffic estimator on Adcenter? For many long tail Google keywords, Adcenter shows no traffic? Should I still be bidding on these keywords etc.

Any help is much appreciated.
Thanks
Arun

ps: I have had my share of editorial troubles with Adcenter (they dont seem to want our money do they?), but now have a few campaigns running and wanted to expand.

[aruns]

Anyone?