1. You can attach the finanical report. But I doubt it would be helpful.
2. I think you should provide all info covering 2004, 2005, and 2006 as USCIS asked for evidence and didn't explicitly ask for certain years. Your company should prove its ability-to-pay from PD till now.
3. If your company's net income is negative for 2005, check out your company's net asset for that year. If it is greater than $6000, you will be fine. If not, you may have to consult an experienced CPA and it is possible that your company can amend its 2005 return to legally adjust its net asset without affecting its net income.
4. Suggest you go to USCIS website and serach its publish AAO decisions. There are lots of AAO decisions regarding ability-to-pay.
Good luck!