100 miles by April?

I have been reading about this in the blog world, and I thought,"Hey. Why not? Fletch and I could use some excercize." I just got home from an almost thirty minute walk with Fletch. I'm thinking about joining the walk/run/whatever along, Run-a-go-go. I won't be running, at least not any time soon. I'm so out of shape. I need to be working on that anyway because of my up coming Alaska trip. Oh, did I forget to mention that? I'm going hiking in Alaska like I went to the Grand Tetons last summer. At least I won't have to buy boots again. I definately do not want to get sick like I did last time. I felt like I held the whole group back. I won't this year.