"Please insert SSBB Disc" Error?

[MasterWario]

Ok sooooo i dot have a 2Gb sd card and i only have a 8Gb one,so after looking throught the internets i found that ios base 58 was the one managing SDHC support,so i installed cios248 with base 58 and did everything else to boot P:M from my USB Loader without it having the thing with the CSS error and everything,it actually,bealieve it or not, booted up P:M instead of vBrawl,however after playing for a while i got the lime-kinda screen sayin "Please insert Super Smash Bros Brawl Disc",i got really confused so i tinkered around with the USB Loader and it booted up...and crashed again...
¿Can anybody help me?


Note: in my BELOVED country Mexico Sd cards are not so findable and kinda expensive...so dont tell me to go buy one for the time being,m'k?