what stakes are you playing, and 6max or FR? TAG def works best at 25NL-50NL. I assume at 2NL-10NL also. Bluffing does not generally work in micros. If everyone else is loose, you shoould be playing tighter both pre and post flop. LAG works when people are too tight. At micros, people are way too loose. Your advantage comes from playing tighter. That way, when you are in a hand, you will always have more than your share of equity at the start since they are playing crap like 8-5 and you are not. You shold be ecstatic to have someone who is playing these cards for a raise PF.
You should be raising any hand in which you are the first to enter the pot. YOu should be raising limpers almost everytime you want to play a hand and have position. This will cut down the field, so it will be less likely people suck out on you. If you want to play more hands, play them from the Button and one off the button, and play them for a raise. Do not open your range from early position.
There is no way a VPIP of 40 is optimal at micros. You can prolly beat the game even at 17/15 VPIP/PFR or so, and anything over 25VPIP is not going to work.
If you want to read about LAG style, try here, but it is a recipe for disaster at 10NL and under
http://forumserver.twoplustwo.com/sh...Number=5659562
http://forumserver.twoplustwo.com/sh...Number=5910509