Kakurenbo
(Hide-and-Seek)
Released July 18th, 2001

01)  Kakurenbo
(Hide-and-Seek)
02)  Mezase Pokemon MASUTAA
(Aim to be a Pokemon Master
03)  Kakurenbo (INSUTOROMENTARU)
(Hide-and-Seek (Instrumental))
04)  Mezase Pokemon MASUTAA (INSUTOROMENTARU)
(Aim to be a Pokemon Master (Instrumental))

Ashita Tenki ni Shite Okure
(???)
Released July 18th, 2001

This is the CD for the ending theme to the fourth movie, "Serebii's Encounter Through Time."  Unfortunately, I'm unable to find a good translation of the song's title (I'm having trouble with the "Shite Okure" part). 

01)  Ashita Tenki ni Shite Okure
(???)
02)  Ashita Tenki ni Shite Okure (ORIJINARU Karaoke)
(??? (Original Karaoke))

Gekijouban POKETTO MONSUTAA 4 ORIJINARU SAUNDOTORAKKU
(Theatrical Edition Pocket Monsters 4 Original Soundtrack)
Released August 1st, 2001

Here's the soundtrack to the fourth movie.  Thanks to Eric C for the track listing.  You can download various tracks from the soundtrack here.

01)  Oyashiki 
(The Ceremony)
02)  Kakurenbo 
(Hide-and-Seek)
03)  BAKANSU 
(Vacation)
04)  Shibakari kun Gekido!
(The Lawn-Mowing Rage Permeates)
05)  SUPAA Shibakari kun 2 
(Super Lawn-Mowing Permeates 2)
06)  Zenin Shuugou 
(Everyone Gather)
07)  Manatsu no Dai Sakusen! 
(The Midsummer's Big Strategy!)
08)  Mori no Densetsu no TEEMA 
(The Legendary Forest's Theme)
09)  Bishasu no TEEMA 
(Vicious' Theme)
10)  Gekijouban POKETTO MONSUTAA TAITORU TEEMA 
(Theatrical Edition Pocket Monsters Title Theme)
11)  Mezase Pokemon MASUTAA 2001 
(Aim to be a Pokemon Master 2001)
12)  Hikou Densetsu e 
(To the Aviation Legend)
13)  Serebii no Fukkatsu 
(Serebii's Revival)
14)  Satoshi, Yukinari Yuujou no TEEMA 
(Satoshi and Yukinari's Friendship Theme)
15)  GOREMU Serebii 
(Golem Serebii)
16)  Suikun no TEEMA 
(Suikun's Theme)
17)  Serebii Ippai 
(One Serebii)
18)  Ashita Tenki ni Shite Okure
(???)