Here’s an article from Minority Professional Network that names her as a contact for a fundraiser for Obama in 2004.
http://www.minorityprofessionalnetwork.com/caldata.asp?id=17828
And another that claims her as Obama’s finance director:
http://www.prospect.org/cs/articles?article=the_chairmans_colorful_cabinet
“African American major fund-raisers are also rare. The few that come to mind are Tina Flournoy, who was finance director for Gore in 2000 and is now another Dean DNC adviser; David Mercer and Wayne Marshall, who were senior finance officials at the DNC in previous years; and Vera Baker, who was finance director for Barack Obama’s Senate race.”
Lots of corroborating evidence as to that fact, yet Obama's website has been sanitized so as not to include her name.