When I get home I'll check what size sc_selmap needs to be in order to work. Apparently sc_selmap needs to be 1214283 bytes or less. What size is yours? If it's smaller than that, the problem must be with something else, and I'm not sure what is causing it.Where's the SDHC code? I've never seen it.

My size of the sc_selmap.pac for this stage expansion pack is 1,174 KB.

My setup was Gecko vs Riivolution. Can you update the 8.0s Expansion Pack with the codes and size of the sc_selmap fixed?

I downloaded the 8.0s Classic Expansion Pack with the Alternate Stage Loader code, and put it on my SD Card, but the game freezes when I go to the stage select screen.

OK. And also when 8.0 is finished, I hope the Alternate Stage Loader code in 8.0 will allow me to use L+A, R+A, Y+A and X+A for all the stages and extra stages in the 8.0 expansion pack, because whenever I put L+A and R+A alternate stage options for stages that are not Final Destination and Battlefield, the R+A alternate stages don't show up, just the L+A ones.

I have a problem with the new Stage expansion pack when I had no problem loading using Riivolution. Whenever I press the buttons required for the alternate stages, they still stayed the same. The Online Practice and Target Smash stages also freeze when I select them on this pack. Can anyone help, please?

Thanks for the help. I've been trying to figure out how to get it to work for ages. 

When I downloaded some mods for Pokémon Stadium 2, and whenever I put a STGSTADIUM.pac file on my SD card and put the SD card in my Wii, the Pokémon Stadium 2 stage still remained normal in the game. I've managed to get most stage mods to work in SSBB on my Wii.

Here's what I have working:
Battlefield From SSB64 (Replaces Battlefield From SSBB)
The Earth (Replaces Final Destination From SSBB)
Bikini Bottom From SpongeBob SquarePants (Replaces Delfino Plaza)
Radical Highway From Sonic Adventure 2 (Replaces Luigi's Mansion)
NSMB Style Mushroomy Kingdom
Alternative Rainbow Road Style Mario Circuit
Hyrule Castle From SSB64 (Replaces Bridge Of Eldin)
Yoshi's Story From SSBM (Replaces Yoshi's Island From SSBB)
SSE Rayquaza Boss Stage (Replaces Spear Pillar)
Metal Mario Stage From SSB64 (Replaces Port Town Aero Dive)
San Francisco From Cruis'n USA (Replaces Skyworld)
Griffin's House From Family Guy (Replaces 75m)
Super Mario Advanced Style Mario Bros.
SSE Character Boss Stage (Replaces Pictochat)
Temple Of Time From The Legend Of Zelda: Ocarina Of Time (Replaces Hyrule Temple)
Mushroom Kingdom From SSBM (Replaces Yoshi's Island From SSBM)
Peach's Castle From Super Mario 64 (Replaces Jungle Japes)
Sector Z From SSB64 (Replaces Corneria)
SSE Tabuu Stage (Replaces Big Blue)

Can anyone help get some mods for Pokémon Stadium 2 to work properly in SSBB on my Wii, please?