<SOLVED> Custom ADD TO CART button

Hi guys,

I am trying to figure out how to make the "Add to cart" button more prominent. I need to make it bigger (custom image), right below the image.

I also need to add two other links: "Send as ecard" and "Rate the image" below the "Add to cart" button.

But I have a hard time trying to figure out how to do that...Any ideas?

I am using the Carbon theme(1.2.3.1) with Checkout(0.1.18) and Checkout by Paypal (0.1.12)

Thanks in advance!

Gallery version (not just "2"): 2.2.3 core 1.2.0.5
Module / Theme name & version: Checkout 0.1.18/Checkout by Paypal 0.1.12/Carbon 1.2.3.1
PHP version (e.g. 5.1.6): 5.1.6 apache
PHPInfo Link (see FAQ):
Webserver (e.g. Apache 1.3.33): Apache/1.3.37 (Unix) PHP/5.1.6 mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 FrontPage/5.0.2.2635.SR1.2 mod_ssl/2.8.28 OpenSSL/0.9.7a
Database (e.g. MySql 5.0.32): mysqli 4.1.22-standard, lock.system=flock
Activated toolkits (e.g. NetPbm, GD): ArchiveUpload, Exif, Getid3, LinkItemToolkit, NetPBM, Thumbnail, Gd, SquareThumb
Operating system (e.g. Linux): (Windows; U; Windows NT 5.1;
Browser (e.g. Firefox 2.0): Mozilla/5.0