In the default magento installation, the top links are as follows:
My Account | My Wishlist | My Cart | Checkout | Log In
In order to change or reorder them you have to do some changes in layout files (xml files).
You can do changes for My Account, Log Out, and Log In from customer.xml file. You can change the title and position of these menu from there.
You can change the ordering of My Cart and Checkout from checkout.xml
See for the following code in checkout.xml
<action method="addCartLink"></action>
<action method="addCheckoutLink"></action>
For My Wishlist, open wishlist.xml and search for the following code:
<action method="addWishlistLink"></action>
Hope it helps. Thanks.