Form 1045 & IT-40NOL

Hi,

I filed my  husband and I's taxes, which included his small business.  I followed the questionnaire about the business and ended up with like a 4500 loss.  I submitted my return and it said approved and we have gotten the refund it said.  I got a letter in the mail from the IRS asking for a "Form 1045, Schedule A & a IT-40NOL".  Everything that I look at shows this as if we are carrying the loss forward.  We did not do this and thought it would be netted against my income (I have a regular 8-5 job).  So I am not sure what to do...Can someone please help?