How to add thumbnails to attachment page… thanks

Hi there all, i want to ask one thing that i am designing my gallery page and attachment page…

i am trying to implement a gallery like with next and previous buttons on attachment page which shows singe picture on per page..with nav below containing next prev buttons… and few number of thumbnails of the images in the gallery… what i want is as under..

I am trying to design a gallery like
http://egotastic.com/2011/04/megan-fox-causes-tire-squeals-at-long-beach-grand-prix/megan-fox-long-beach-grand-prix-01/

and I am trying to implemnent it on my attachment page
http://www.rockpakistani.com/style-and-fashion/review-maria-lawn-collection-2011/attachment/maria_b_summer_lawn_collection_2011_1

few of the things i have done.. like previous button and next button… what i want is

1. The attachment page must show number of thumbnails ie(4 thumbnails between next prev buttons)

2. The Image must be enough like stretched or fit to the space… the width there is 630px wide and i use large image size as per my configuration which automatically crops the images to 630px so is there any query i can call large size images in wordpress…

3. How can i show the view full image link just like the egotastic has…

4. Can i implement or integrate jquery as per egotastic gallery…

Thanks Please help me out…