how do i fix this?

HELP!

Started my first novel earlier this year and, unfortunately, I appear to have made one major mistake that now has me unsure of how to proceed. Although I did more than my share of research regarding the various subjects included in my novel, I jumped right into the actual writing without referring to any "How To" books. I had a moderate amount of experience writing non-fiction magazine articles and thought I had a basic understanding of "How To Write." Big mistake….

For discussion purposes, I'll classify my novel as half murder mystery and half political thriller. It's written from the murderer's point of view, so there's not much mystery concerning who committed the murder, but other plot twists supply the mystery element.

The first hundred or so pages literally flew off my fingers and onto the screen. And then, after about three months, I spent an afternoon wandering through bookstores, paging through "Novel Writing for Dummies" type books and even purchased a book specific to the mystery novel genre.

Every single book listed one topic as either the first or second most important skill for novel writers: writing convincing dialogue. My first 100+/- pages contained exactly zero lines of dialogue. Oops!

In a panic I started flipping through all of those books again looking for info on writing w/ minimal dialogue; but few even mentioned the concept. Finally I found a couple of books that discussed the issue and they both offered up the same conclusion: writing with minimal dialogue was very popular prior to around 1930 or so. But since then, anyone wishing to hold onto a reader must write with a ?'scene based framework' consisting mainly of dialogue. They referred to my narrative style as ?'lecturing the reader' and firmly stated that no one publishes that sort of fiction any more. Aaarrrggh!

Right now I'm torn between two possible solutions. Re-writing the first 100 or so pages in ?'scene based format' or keeping what I have and inserting dialogue heavy chapters in between each pair of narrative chapters; ending up with an alternating style of dialogue / narrative / dialogue / narrative throughout the book.

For what its worth, writing dialogue has come easy now that I understand it to be important, and the second 100 or so pages read similarly to any book I pick up in the mystery section of the local bookstore. But I'm going to have a much harder time with the first section of the book where I explain so much about what has the murderer all worked up, and why he thinks murder is a practical solution to his current situation. Some things just don't come up in everyday conversation and it sounds ridiculous when I try to force it into that format. But I do wish I had spent an hour flipping through "How to Write a Fiction Novel" type books before I got started…