Can I change product details in order confirmation email?

Is it possible to modify the layout of the product details in a confirmation email? The text from the product detail section of the confirmation email is below - this is for an item with a text attribute "Pet's Name" and a file upload attribute "Picture:".

Products
1 x Medium Food Bowl
With your pet's name and picture! (PDM2) Pet's Name scout Picture: 2. Sample_Pic_18.jpg $17.00

Sub-Total: $17.00
Per Item (Best Way): $2.50
Total: $19.50

There are several things I'd like to change:

Attributes listed one per line (some products will have up to four text attitubtes plus a file upload - it will be messy if they're all on one line)

Attribute text not small or italic

Only picture name shown, not picture number
(i.e. Picture: Sample_Pic_18.jpg, not Picture: 2. Sample_pic_18.jpg)

Don't show the model number (or place it before the product name)

I've modified \email\email_template_checkout_html (after backing up the original), but the details of this are all contained in $PRODUCT_DETAILS, which appears to be defined in \includes\classes\order.php along with the css styles for everything in this field. Is it possible to make the changes I'm looking for without changing order.php? (I don't think I can override order.php, can I?)

Thanks!

ducksigns:

Is it possible to make the changes I'm looking for without changing order.php?No

ducksigns:

(I don't think I can override order.php, can I?)
Correct.

OK - That's what I thought the answer was, but wasn't sure. Thanks