Greetings, first time poster, long time reader

I downloaded the new version from BitTorrent and am currently downloading from the mirror to see whether theres a difference, but, after downloading and unpacking and copying to Applications, I try to run both the updater and the client (client first), the logo bounces up and down in the dock for a moment and then disappears. I've tried restarting and deleting and recopying the BitTorrent version, but it always does the same thing. I'm running it on a slow old Mac (933mhz) and am using 10.3.9. I've had a look through the forum, but have been unable to find anyone with the same problem. Should I just wait for the Mirror version to download, or is there something I can try in the mean time?

I would

some help!
I'm not that computer savvy

[Edit; even more embarrassed that this icon doesnt work... but I think it proves my point!]
Thanks in advance!