We should be able to sum this up in 4 images, but just in case, grab a cuppa-java for the ride. Isn’t coffee so delicious.
1) In accounts, select laconi.ca as the service for a new account.

2) Enter name@melative.com for the screen name, where name=your user name

3) Add the account, and hit Connect

4) Enter password, and Login to enjoy

^_^
Notes
For more information on how this works, see the laconi.ca Twitter API documentation. Note: we are not using laconi.ca, but simply built an interface almost to the specifications.