This isn't the fanciest way, nor am I sure it'd do exactly what he's wanting....buuuuut I would do this with a script attached to the target window of autocad
You could use this as your script, after doing an "id" on the two corners of a window that would encompass your title block. Do an 'id' on two opposite corners of a window that would encompass it, then use those points as the corners of a zoom window...bam, done upon opening any drawing. As long as you're messing with the same set of drawings or any that use the same titleblock, you wouldn't need to remove the attached script, but upon going to a different project or opening a non-related drawing, you'd probably want to detach or remove the script so that acad behaves as expected.
zoom
window
pt1
pt2
[carriage return goes here but no text]
I've been trying to find out how to place an image directly into this post but have failed in finding out how to do so. The button that I've pressed just adds html tags and doesn't bring up a dialog that leads to an inline image, but if you check out what's attached here then you will see where to put the script name so acad automatically runs it upon opening a dwg, as well as the above script in notepad with a .scr extension that allows it to be used by autocad.
HTH
p.s. Oh okay, good it did insert my image as I was hoping
