DMX and others,
Luckily I have some experience in this matter. Maybe my situation was unique and for your sake I hope it was but I interviewed at BU on 1/27 and on 1/31 I checked my status via Infosource and it changed from Invited for Interview to Offer Made. Of course I was happy but still unsure until I received the letter. I PMed about 4 people to double check that this meant acceptance and all said it was positive. Then about a week ago, probably out of impatience, I called BU to ask if my application was complete and what did Offer Made mean. The lady on the phone put me on hold briefly while she checked my file but when she came back she said that mine was a mistake and the application was still being reviewed. She apologized and wished me good luck. After I hung up I rechecked my status on Infosource and it changed from Offer Made to Received/Application Complete. Still unsure I called my interviewer, Dr. Shaw, for an explanation. I wasn't clear what the reason was but she said that offer made was a rewording of invited for interview. Then she wished me good luck. I'm not sure what has happened but I'm still waiting.