Yes, You added or removed one of the columns.
For example, by default there's no column for Phone Number, and if you added it to all update sections but one,
it will error like that.
The sections are:
Stored procedure UpdateAd,
App_Code/DLL/Ads.xsd
(I like to do it manually, by right clicking and choosing view code)
There's two updateAd sections.
App_Code/BLL/Ads.vb again UpdateAd Section.
And the editAd.aspx page, needs the textbox, or whatever you used for the new column.
It also needs the entry down at the bottom of EditAd.aspx page.
Just copy how the others were done.
Good Luck
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