program help

[tkav1980]

guys i need some criticism on my current program...
diet: im up to 10 cans tuna, 4lb chkn breast(boiled), 4 cups brown rice, 18 eggwhites, 3 sweet potatoes, 2 cup broc., 2 bananas. eating every 2 to 3 hrs.
i think my diet is ok but id like some advice on my training to maximize gains by summer. due to my work schedual here is my training program.

monday:
am back
deadlift 4x8
lat pull 4x8-10
bent over row 4x8
t-bar row 4x8
pm legs
hack squat(bad knee pain so this is the only squat i can do) 4x12
leg press 4x8
leg extension 4x10
leg curl 4x10
calf raises 4x13

tues
am chest
flat bench 4x8-10
incline bench 4x8-10
incline dumbell press 4x8
pec deck 4x10

pm abs/ cardio(45 min)
abs varies its a 30 min workout alll sets to failure

wed off

thurs
shoulders
seated shouldet press 4x10
lateral raises 4x8
front raises 4x8
shrugs 4x6
upright rows 4x8
abs
fri off

sat arms
(all arms are supersets bi's+tris no rest between muscles)

standing easy bar curls/ skull crushers 4x8-10
hammer curls/close grip bench 4x8-10
one arm preacher curls/ over head one arm extensions 4x 10-12
cable curls/ rope pushdowns 4x10
arms never get sore.
calvs 4x13

light abs.

sunday off
i appreciate any advice.