Alaska Dispatch by Rena Delbridge.  The state is getting ready to write its first check to TransCanada Corp., its partner in pursuit of a natural gas pipeline from the North Slope to North American markets.  The state's licensee under the Alaska Gasline Inducement Act, TransCanada filed an invoice earlier this month for expenditures it made through the end of the first quarter 2009. TransCanada vice president Tony Palmer (NGP Photo) confirmed his company turned in expenses from December 2008, just after receiving the state's license under AGIA, through the first quarter of 2009, [...]