You might have to get an aftermarket baseplate for your router to install the PC-style guide bushing I am sure that jig uses. That's actually a good thing as hardly any factory baseplates are centered well enough to work with dovetail jigs.
I just did a story on centering the guide bushings and used a baseplate from Woodcraft that worked well with the PC guide bushings and even came with a centering tool. This is a small investment that will make life with a dovetail jig way easier!
I would suggest you pickup the MilesCraft base plate, it comes with every thing you need to mount it and use it, the best thing about the plate is you don't need to remove it when you want to use the larger bits ( 2" max) that other after market plates can't do..
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