Pretty sure it was just Alan, Noel and Liam.

Did Liam not walk off after forgetting the words to most of the songs they did at this? Might be getting mixed up with something else.

According to Paolo Hewitt's ever-useful book Getting High (p39-41) they played:

Rockin Chair (but Liam, being drunk, forgot the words so they abandoned it. Liam then joked that he could remember one song... and sung a line of "Kumbaya my Lord" to cheers from the 500-strong crowd).

Then Noel played Wonderwall, Don't Look Back in Anger and Cast No Shadow, finishing the performance at midnight.

There must be footage also

I'v always wondered if there was 1 for Be Here Now ?

www1.sk-static.com/images/media/img/col6/20090513-112312-171432.jpg

Here was the setlist

1.10.95 - in store album promotion
at Virgin Megastore, Oxford Street, London
Wonderwall
Don’t Look Back In Anger
Cast No Shadow
Noel on vocals & guitar, Liam on vocals & tambourine and Alan on drums

This was also when asked what the album's name meant
Liam replied something like ,' its meant to be a plant innit ,morning glory ,Or its meant to be when you wake up with a rather large one ,if you know what I mean '

Starting the old nudge nudge wink wink stories in the pub's round the country ,
Great times

Yes,I remember reading about that in Paolo Hewitt's book, just didnt remember that it was the Virgin Megastore 1995 gig. I knew it was a MG promo gig though.

None of the setlists suggested here - including the one from rantboy - are complete, and this is one of a handful of shows I still don't know the full setlist for myself. I guess we're getting closer now, though.

Anyway, here is what I can add;
Live Forever was performed with Liam on vocals. (I will upload an audio clip that can confirm this - edit: uploadmirrors.com/download/0U1U8048/Oasis-VirginMegastore1995-clip-joakim.wav)
Wonderwall was performed with Noel on vocals.
Rockin' Chair was - as davidjay mentioned - played, or at least attempted. Noel dared Liam to remember the words for this. Given how they played the song in Blackpool the following day, it's not unlikely they did play it, but it's not been confirmed that they played the full song.
-Liam sang one line from Country House by Blur to a huge cheer from the audience.

This performance was on the same day as the (WTS)MG-release party, and the band were very drunk, but in good spirits. As many of you are probably aware, someone thought it'd be a good idea to have the release party in the morning.

Here is a small clip of a Liam talking, followed by Live Forever from Virgin Megastore 1995. This has never been uploaded on the net before;

uploadmirrors.com/download/0U1U8048/Oasis-VirginMegastore1995-clip-joakim.wav

Thanks very much!

pic seems to have been taken when Liam couldnt remember the 'hard enough being alone' line.
seeing the Em and the band smiling/laughing

I replied in the topic as well, but just to confirm; this is from the HMV Superstore in Toronto, on Dec 12th 1995. This was the day before the Much Music performance, and their gig at The Warehouse.

Many thanks for the clip joakim!