Custom image size and cropping

Hello,

I’m trying to create a simple grid-style archive with uniform image cropping. This works seamlessly when the images are sized to “thumbnail”, but the titles extend to the right of the thumbnails. When I increase the image size to “medium”, the images are no longer cropped and I lose the nice uniform styling of the grid.

I followed the instructions on Image Size Display Parameters to the developer page on custom image sizes, but I’m afraid I’m in over my head at this point and couldn’t get a clear heading on which code I need or where to place it.

Any help would be appreciated. If you look at my page, I’m just trying to make the images large enough that the titles don’t spill out from under them, yet keep them all a uniform size so as not to disrupt the neat rows and columns.

The page I need help with: [log in to see the link]