109.7.1 Records of the Adjutant and Inspector General's Department
Textual Records: Letters and telegrams sent, 1861-65. Letters received, 1861-65, with registers and index. Telegrams received and drafts of telegrams sent, 1861-65. Record of telegrams received, 1862-65. Account book relating to telegrams sent, 1862- 64. Inspection reports, 1863-65, with indexes, n.d. Records relating to courts-martial, 1861-65. General and special orders, 1861-65. Muster and pay rolls of Confederate military units, 1861-65 (510 ft.). Casualty lists, 1861-65. Records relating to appointments of military officers, 1861-65, with registers, rosters of officers, and lists of quartermasters. Records relating to army organization, n.d., with register. Records relating to conscription, exemption, and details, 1862-65. Register of slaves impressed, 1864-65. Miscellaneous records, 1861-76, including powers of attorney, 1861-65; records of boards of surveys, 1861-65; and Troops Tendered to the Confederate War Department, 1876.
To give you some idea of size, the Inspection Reports mentioned have been microfilmed. That alone is 17 reels of microfilm.
This gentleman attempted to publish some of the orders that interest you --
http://openlibrary.org/books/OL1576971M/Luhn%27s_edition_CSA_AIGO_special_orders_1861_series_A