To translate "United Parcel Service", you'll make a language-override copy of /includes/languages/english/modules/shipping/upsxml.php into /includes/languages/spanish/modules/shipping/upsxml.php and make that translaction, changing 'MODULE_SHIPPING_UPSXML_RATES_TEXT_TITLE'.

For the formatting issue, you'll need to check in your custom template's CSS and/or shipping-estimator/checkout-shipping pages' layouts.