most of the basic training you can practise at home ie.. hammocks, basha's kit packing and firelighting etc... its more military advice but its valid wherever.
I'm assuming rainforest not savannah so here's some of what I remember from my jungly training
learn the two kit method of one wet one dry set. you will always be wet either from water or sweat.
look at a machete or kukri as your primary addition to your multitool and sheath knife. you can also buy a local made blade then bring it back as a souvenir.
keep your valuables/wallet/passport etc.. in a waterproof box
you can firesteel it but always have a waterproof supply of matches - swan vestas in a ziploc bag in your back pocket or several lighters - get used to working with damp wood and wet ground. never go anywhere without fire, a blade and preferably your survival kit. no cooking fuel will be required but fire starting kit yes.
the jungle will aways be damp and riddled with bugs so learn how to keep you kit off the ground and always check for nasties in the morning
drybags are a must as are ziplocs they keep the bugs out as well.
everything in the jungle is out to get you - spiders, ants, blow flies, centipedes, leeches, snakes etc.. even some of the plants so be wary and use your eyes. every cut can kill you so loads of iodine, first aid kit and training. clear the floor and check for nests before resting or setting up camp.
take a sleeping bag as it also gets cold
led torches and a spare as the jungle gets very dark very quickly
m65 style trousers are good and learn to pack them properly if your tools and kits interfere with your hip belt then put stuff on your hip belt and the rest in the bellows pockets and on lanyards. military kit is designed for this and cheap so dont be worried about looking like a vietnam vet as even ray wears and uses it if you dont like olive drap then buy the desert kit. jungle boots are for just that your feet will stay wet all day knee high goretex socks might help but get used to doing without.
http://www.usrsog.org/ - these guys do a good trouser pack list - remember you aren't likely to be wearing a shirt.
buy a decent water filter and find a water puritab whose taste you can tollerate you will most likely be following river courses so water wont be an issue so squashy bottles in the bergan but at least 2liters of belt kit.
food is likely to be rice/pasta and whatever you can find to go with it - a few soups and pasta sauces will make a welcome addition to the menu. the locals have acclimatised stomachs but you cant drink the water or even eat the fruit unless its well wrapped as it can give you dysentery.
buddy up and check each other all the time - keep your pants on when washing unless the locals say its safe and never pee into any water alway do it into the forest.
athletes foot and crotch rot will pop up so decent socks, lycra pants and a dosing of iodine, canasten and foot powder around both areas at night will help.
plenty of salt tablets along with your paludrine - I'd also pack vitamins and take garlic pills the smelly breath type are best as they make your blood a repellant to blood suckers - they can smell it so leave you alone.
never pick the leeches off - a cig end/lighter/match.hot stick or insect repellant will get them off.
no deoderant as it attracts the bugs and you need to sweat so leave the sure at home - simple soap or mountain suds for everything. try not to wet shave as the cuts soon turn septic
make sure you have a welcome bag at the other end so you can pamper your self back to life - a 5 day antibiotic course will help ensure you dont bring any nasties back - watch for strange lumps and bites though and read up on blow flies or the human botfly both of which lay their eggs in old bite or wounds, the maggot eats its way out. there's also a nasty little spider which bits your toes then lays its eggs under your nail.
anyway enough doom and gloom - I hope you have fun