Hi!! is there any way, if i'm zerg, have suply without overlords??
None.
We can't explain the universe, just describe it; and we don't know whether our theories are true, we just know they're not wrong. >Harald Lesch
http://www.staredit.net/starcraft/Modifying_Supply_LimitsBasically you place an extended unit (or building) in the editor which overflows and sets a supply value (used / max. available / cap). The neat thing about it is that the effect stays whatever happens to the unit, so you can either kill it (not possible via triggers) or let it burn down if you pick a building.
Farty made a nice calculator that tells you what player to place it for:
http://farty1billion.dyndns.org/SupplyMod.php
An artist's depiction of an Extended Unit Death
Hatcheries, Lairs, and Hives also provide Zerg supply.
http://www.staredit.net/sc1db/file/609/Here's a map with this in action.
"Parliamentary inquiry, Mr. Chairman - do we have to call the Gentleman a gentleman if he's not one?"