Floating Radio Buttons and CSS Customization

If you look at your images.css file, line 7 has this rule.

.entry-content img {margin:0 0 18px;}

Thats affecting your date picker image as well, you'll need to override it with something like this

.entry-content .gform_wrapper img.ui-datepicker-trigger {margin:0!important}

As far as the radio lists, you'll need to view the source, note the id's of the list items that contain the fields, then apply some width, height and float rules to those so they will lay out as columns. You'll want to float the first ones, but leave the float off the last one so it clears the items below it.

.gform_wrapper li#field_2_6,
.gform_wrapper li#field_2_7,
.gform_wrapper li#field_2_8,
.gform_wrapper li#field_2_9 {width:25%; height:160px;}

.gform_wrapper li#field_2_6,
.gform_wrapper li#field_2_7,
.gform_wrapper li#field_2_8 {float:left}

test screenshot

Just apply that same principle to the other lists you need aligned the same and you're good to go.

Note: I would do 25% width for all the lists, even those that don't have 4 columns. That way everything will still visually align vertically.

My pleasure. Form looks good btw. Nicely done.