can't align products in main page and products info. crying...

dear all,

firstly i have problems in aligning the products.
In home page, i have made it as a grid form, which is 3 in one row.
but it's not align properly. it have gaps between the tables that i need to get rid of.
it seems like the Products name and descriptions are too long, sometimes it's two lines sometimes it's three.
i have been trying to chang the Column Width, maximum length of description to 150, the product name to just 20 characters ..
but still i'm getting uneven align...
i spent the whole day on changing all the numbers in "Configuration" and other place, but it cant help...
gonna cry....T_T

here is my sites: http://9289.com.au/

secendly, can i make some space between two lines?
i mean, my page looks so messy especially in customer register page:
http://9289.com.au/index.php?main_page=create_account:no:
is it cells padding and spacing problem?

thirdly, in products infomation page, can i make all attributes something like "Model" and "manufacture" align at the right side of the image,
and make the descriptions bellow them which is like the picture below?
(the image i have edit it in PhotoShop, not the existing page. it's my wishes to let my products info page shows like this. is it possible??)

i sooo sorry to give u guys so many questions....:oops:
i'm newer..anyway those questions feaze me the whole week then....
can anyone kindly help???

Thanks a million! !!~~~