Likewise, I can give it a try. The problem is that with digital photography, you generally can't improve the image beyond what it was initially taken at.
you can run sharpen filters, but they rely on contrast between ajoining pixels, and merly enhance this contrast. Improving the quality of an image is very difficult, and you only get marginal results. The computer cant interpolate where the lens should have been focussing, it has no depth on the image as its two dimensional so it can't interpolate what it should look like. A blurred photo is going to stay blurred. At most you might enhance some lines on it.