can i carry more cargo, if i have more troops?... if i use more troops or i buy horses, doest it affect on movment speed?
You can carry as many crates as you want with even just one troop but it takes 2 troops to carry 1 crate without a big speed penalty. For example, if you have 100 troops they could carry 50 crates and would move at 18m per minute. Terrain also affects movement speed so forests, mountains, snow and crossing bridges slows you down. For example, if you're in snow you'll probably move at around 17m per minute. (see terrain link below)
Each horse can carry 1 crate. If you have more horses than crates but more troops than horses you'll move at 22m per minute.
If you have the same number of crates, troops and horses I think you'll move at 32m. If you have more horses than crates and troops you'll move at 36m per minute. So if 1 horse is carrying each troop and 1 horse is carrying each crate and that will give you the 36m speed.
A trading good weighs 5kg and crates hold 30kg so 6 good form 1 crate. Here's a breakdown of how crates work:
Troops can carry equipment on their body (1 helmet, 1 armor, 1 pair of boots, 1 pair of gloves, 2 weapons [up to 4 stacks of arrows, bolts or throwing weapons count as 1 weapon]). If you have more than this, you carry stuff in crates. Trading goods, Spare weapons and armors - that goes into crates. One crate takes 30kg. Two men or one horse can carry a crate without additional penalty. Trading goods have a weight of 5.
Here's some exact speeds you can get with different combos of troops, crates and horses:
So without considering numbers of troops speed should look like that :
44.55 speed with more horses than troops, and equipment worn directly, without any crates
36,8 if you have more horses than crates and troops
32.5 with slow horses,
27.6 if you have more slow horses than crates and troops
25 to 22.5 with equipment worn directly (depends on the troops and weight of the equip you wear), without any crates
22 with more horses than crates, but more troops
18.75 to 10 if you have troops carrying crates.
And here's a description about how terrain affects movement:
http://forum.meleegaming.com/strategus-general-discussion/strategus-changelog-formulas/msg257440/#msg257440-----
i can't acess towns or buy armors and weapons at all. 
I press enter Yalen and come after 4 hours and i am still outside. Why?
Click on "Info" to the right of the map tab. Then scroll down and it'll show that you're in the town. You can buy goods on the info screen, sell them in the equipment screen, then buy all other other equipment in the Weapons tab.
If you're not in the town yet or traveling somewhere else, you can also click on the info tab and on the left side of the screen it shows how long it will take to reach your destination.
