Affirming what CJ said, if you have the job, find out what makes your boss tick. It may be that he/she don't want you to get MS cert--they may have someting better...
Or it may be the boss was waiting for you to ask and then offer some complete package...
First get in good with the boss, second finger out where you want to be in 10 or 20 years, third draw the path, fourth (if it's on the path) get the certification...
Good luck!! JTB
Solutions Architect
MCSE-NT4, MCP+I, MCP-W2K, CCNA, CCDA,
CTE, MCIWD, i-Net+, Network+
(MCSA, MCSE-W2K, MCIWA, SCSA, SCNA in progress)