We are getting rained on inside this tent. It is leaking at the seams. We received it as a wedding gift that we were registered for at target.

ALL tents need to be seam sealed periodically. It is a good idea to do it with a new tent, but usually not required the first few times out. I also spray the fly with a new DWR coating as tents get older, and have sometimes re-waterproofed them elsewhere.

Best thing to do would be bring two tarps and suspened one above your tent and one underneaththe tent . . Also I would recommend seam sealing your tent. Also use a spray waterproofing on the outside and the inside just to be safe.

The gift card can be register at whatever website it is from.
Ex. Target Gift Card = target.com
Ex. Walmart Gift Card = walmart.com
Ex. Amazon Gift Card = amazon.com

Absolutely not, the smoke from a grill will damage the fabric of the tent. All grills must be far enough away from the tent so that no smoke is allowed to enter the tent. The tent is made of very flammable fabrics so there is a great risk of causing a fire while grilling under a tent, just put the grill outside it will be more pleasant to stay inside not smoky tent.

If you sealed the seams properly, your tent should now be waterproof enough to keep the rain and dew out. That means it is also waterproof enough to keep moisture condensation in. As you sleep your body gives off moisture through perspiration and breathing. It's no so fun waking up wet. Most tents provide a roof vent and doors or windows with screens and I also advise you to get a ventilator to your tent in order to make your experience more comfortable.

It sounds like something soaked in, either a rain shield product that wasn't allowed to dry before putting the tent away or a leak during storage. Tents can be cleaned with mild cleansers, but it's best to try just plain warm water first, as cleansers can leave residue behind that will impact the rain resistance of the fabric and attract more dirt. If you do have to use a cleanser, rinse the tent well afterward! Make sure the tent dries fully (including the seams) before putting it away again. Here are more detailed instructions:

http://www.hiking-gear-and-equipment-used-for-camping.com/how-to-clean-a-tent.html

Check this website, have your ten info handy.
http://www.coleman.com/coleman/manuals/manuals_resp.asp?category_id=2200

did you set tent up at home once and soak ot down with water and let it completely dry before using it?
I have several greatland tents and never have trouble
When it is raining the most important thing to do is to make SURE that nothing is touching the tent material on the inside as to that is what causes water to start to leak thru .Just like a wick. Once the tent gets wet the fibers swell and seal the material stoping the water from coming thru and this getting wet is actually the only waterproofing needed . Taking a tent down wet or damp defeats this and must be setup again and soaked and allowed to dry all over again.As for warranty you have to check the owners manual, The pole having snapped sounds like its possible it was put in place in the wrong spot

Just get a few cans of Camp Dry or a good spray tent waterproofing. Set up the tent and brush the flaky stuff off and spray the whole tent. Allow it to dry completely before refolding. I usually get about 3 years out of one application. The seam tape can be resecured with seam repair products. There are gels, tapes and what look like glue sticks.